oversampling to reduce the noise floor of concern
Design Analysis of the accuracy of measurement of small analog signals
A range of 10 kg scale if to distinguish between changes in weight of 1 gram, the main
components of this scale often is a delta-sigma analog-to-digital converter. Design
Division temperature measurement accuracy of 0.01 degrees, delta-sigma ADC often become the
preferred solution. Delta-sigma ADC also be able to replace those in front
Plus there are the traditional type of a gain stage successive approximation register ADC. Due to
small changes in these data converters ideally suited for measuring the real world, so
Temperature sensors, scales, transducers, flow meters and other precision instruments, as well as
numerous other types of sensors are very suitable for the use of delta-sigma to the ADC.
Delta-sigma ADC on the surface may seem very complicated, but in fact it is constituted by a
series of simple parts, precision data converters. Incremental
Cumulative ADC consists of two main components: implementation of the analog-digital conversion
of delta-sigma modulator and digital low-pass filter / extraction circuit. Delta-sigma modulator
The basic components (integrated operational amplifier, the summing node, the comparator / an ADC
and a DAC) shown in Figure 1. The balance of the charging circuit of the modulator is mandatory
Compared to the digital output of the bit stream to represent the average of analog input signal.
A DAC at the same time the comparator output is routed back to the modulator, using a low
Pass digital filter to process it. This filter to calculate the number of 0 and 1, and remove a
lot of noise, in order to achieve data transfer up to 24
Figure 1: the conversion of delta-sigma ADC by the modulus delta-sigma modulator and subsequent
digital filter and decimator composition
the comparator: Comparator
1-bit ADC: 1-bit ADC
digital filter: digital filter
digital output: digital output
1-bit DAC: 1-bit DAC
1-bit data the stream: 1-bit data stream
delta sigma is modulator: delta-sigma modulator
A major obstacle to more digits resolution noise. For those who try to thermocouples, sensors
or other low-level signal source to identify
The designer of the level change in microvolts (µV), the noise will be a major problem. The
noise of the noise floor around by all unwanted external modulator
The source of the noise generated by the sum of the composition. And the noise floor is thicker,
the more difficult it is to detect you are trying to test real changes of the analog input
Oversampling, noise shaping, digital filtering and decimation is the delta-sigma converters
used to reduce noise and produce high-resolution output data of the four kinds of important side
France. Assume that the input signal sampling frequency fS of a data converter according to the
Nyquist theorem of the data (the Nyquist theorem states) must fS
At least 2 times the input frequency (fIN = fS / 2). Oversampling is higher than the frequency of
the input signal frequency is twice the input signal sampling. A large oversampling
Sample (k) will produce a more fully digital bit stream, said. Composition of the bit stream "1"
or "0" the more, the number of the input signal approximation, the better
. Figure 2 shows the over-sampling to the sampling rate kx fS / 2 how to make the modulator to
the same amount of noise is extended to a wider frequency range. This greatly
Narrowed the noise floor in the frequency band of concern. The over-sampling rate for each
additional 2 times the desired signal-to-noise ratio (SNR) improve 3dB. The larger the SNR means
that the increase
The amount of cumulative converter can better distinguish smaller changes in the analog input.
Figure 2: oversampling to reduce the noise floor of concern to the band
noise. hate the floor after oversampling: oversampling the noise floor
the orignal noise floor: the first noise floor
oversampling ratio: the oversampling ratio
Noise shaping modulator control loop integrator delta-sigma converter can accurately measure
the analog input. The noise of the integrator
The sound forming process, the more noise to force the passage of a higher frequency, as shown in
Figure 3. Then, the digital low-pass filter to remove high-frequency part of the noise,
This greatly improved SNR. The digital filter can also be used to greatly reduce the 50Hz, 60Hz
or other unwanted frequency noise.
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To improve the fragile nature of human aging or si
Innovative medical sensor technology program resolve
Part I: eyes and ears with modern electronic technology in the field of medical and
biological progress, our eyes, ears, lungs, heart, brain function has
May be enhanced.
Sci-fi drama "Invincible King Kong" (TheSixMillionDollarMan) onto the TV screen dating back
almost 40 years, with modern electronic technology
Surgery and nanotechnology, advanced implant technology, solar energy and solar energy equipment,
as well as the integration of sensors important development in the field of medicine and biology,
the science fiction
Is becoming a reality. The scientific innovation gave birth to the sensor-based electronic
devices to enhance and replace the human organs. These electronic devices, including the WBAN
Area Network) as well as to enhance or replace the equipment of the eyes and ears. The first part
describes the innovative sensor technology, as well as from the sensor until the microcontroller
Miniaturized, implantable, and wireless electronic interfaces. The second part will discuss the
lung, heart and brain.
The development of sensors and wireless communications equipment so that we can design a
miniature, cost-effective and intelligent physiological sensor nodes. An innovative
Wearable health monitoring systems, such as the WBAN. IEEE802.15.4 standard for this technology
provides for a medical sensor body area network-related
Low-power low data rate wireless solutions. 2011 STMicroelectronics launched its own future
"cyborg" technology, including sensors and
MEMS, and iNEMO (inertial module evaluation board) node.
Other vendors in this area, Analog Devices also offers some advanced activity monitoring
solutions, and sensor interface components
Texas Instruments provides a development kit with TmoteSky, this is the next generation of "the
mote platform for extremely low power consumption, high data
Remote platform of the rate sensor network applications, fault tolerance and ease of development
of the dual design goals. TI's TmoteSky suite known as 10KB of on-chip
On RAM (maximum capacity) in all mote, the IEEE802.15.4 RF, as well as a 125m scope of the
integrated onboard antenna.
Help the blind see again
Retinal repair technology can help the suffering from retinal degenerative diseases such as
macular degeneration may blinding the crowd to restore vision (Reference 1). Researchers
Member of clinical implantation studies do prove that implants can eventually make up for lost
eyes, using an implant, including a 15-channel
Incentive chips, discrete power components, and consistent with the eye the outer wall of power
and data receiving coil. Boston Retina Implant project researchers
Region in the retina of a pig implanted with an array, while most of the prosthesis (titanium
sealed electronic components box) attached to the outer surface of the sclera
, Or the whites of the eyes part. A spiral electrode array out of the box extends to the eyes of
the superior temporal quadrant (Figure 2). The system has an external video capture unit,
And a part of the send image data to the device implanted transmitters (Figure 3). A custom ASIC
image is converted to two-phase current pulse, its sent to the
The strength of the electrode array, cycle and frequency are programmable (Figure 4). The Minco
company also provides advanced flexible circuits for implants will help
To achieve this for the 1.7 million victims of such diseases of the eye pain people.
Since the study began two years ago to do the clinical research, electronic technology has
undergone a lot of progress, improved miniaturization, reduced power consumption, and
Increase the level of integration, this effort is expected to form products, the FDA (Food and
Drug Administration) approval for use in humans. Examples of these technical advances
Child, including: Texas Instruments to comply with the Wireless Power Consortium Qi standard
wireless receiver and transmitter technology, the company is to provide improved load system
Up to international standards of communication for wireless power transmission, AC / DC power
converter output voltage adjustment, as well as dynamic rectifier control. From Texas Instruments
Wireless power products and the development kit, you can make a full set of non-terminal power
transmission and charging design. The Freescale AnalogDevices company also mentioning
For this area, low-power wireless products.
Another clinical study is the use of the photodiode circuit is expected to achieve high-
resolution retinal prosthesis. In this study, the Stanford University
The researchers are trying to study the active bias photosensitive circuits and passive
photovoltaic circuit (Reference 2). The University Department of Ophthalmology and Hansen
Experimental Physics Laboratory, vice
Professor DanielVPalanker said, he used a laptop computer processing the data stream from the
camera, a mini-LCD (similar to the video glasses)
The data obtained is displayed. Field of view of about 900nm wavelength near-IR (infrared) light
to 0.5ms interval to illuminate the LCD, which is equivalent to about 30? This pulse will pass
Over the eye projected onto the retina. Field of view then, the subretinal a 3mm diameter chip
implanted in photovoltaic pixels receive the IR image, equivalent to 10?
. Each pixel is pulsed light is converted to a bipolar pulse current is proportional to carry
visual information to the diseased retinal tissue.
Compared with the photosensitive system, the PV system additional power, which greatly
simplifies the design of the prosthesis, manufacturing, and related surgical procedures
The former requires active bias voltage. The researchers plan future studies to determine the
response of various retinal neurons such incentives.
To help deaf people gain access to hearing
Another field of development in Biomedical Sciences is a cochlear implant. The main objective
of these implants by electrical stimulation, or restore power safely
Can hearing (Reference 3). The implants included in the unit on the ear and an external processor
and a battery, an external unit with a microphone to pick up sound
Converting sound into the digital domain, digital signal processing and encoded into an RF
signal, and then send it to the antenna in the headphones (Figure 5). Doctors by
Surgery, beneath the skin is placed in the ear of a built-in receiver, a magnets out of it, the
headset is fixed. Sealed actuator contains the active electrical
Sub-circuit from the RF signal energy to decode the signal and converts it to current, and then
send it to connect the wires of the cochlea. Wire ends
The electrodes stimulate the auditory nerve connected to the central nervous system, these nerve
electrical pulse resolution sound.
External language processor includes a DSP, a power amplifier and an RF transmitter. DSP to
extract the characteristics of the sound, convert it to
A data stream, the RF transmitter to launch out. DSP contains a stored image of the patient
information. Adaptation of the external PC program can be set
Or modify the stored image, and other voice processing parameters.
The internal unit an RF receiver and a stimulator sealed. This internal implanted unit is
battery powered, so the receiver must
The RF signal energy. Then, the charge to stimulate the decoder RF stream, converted to current,
given to the auditory nerve at the electrode. A feedback system
Monitoring of implanted electrical neural activity, and these activities sent back to the
external unit (Figure 6).
AdvancedBionics company has developed an implantable electronic platform, it offers more
channels, and generate a virtual pass through the current steering
Road capacity. The company's R & D vice president LeeHartley said the biggest challenge in the
development of complex sound processing sensor is one of increase in noise
Listening skills in listening environments. He said: "cochlear implant receiver for lack of
ability to distinguish between loudness level and the different frequency channels is all the
Challenges to improve the language understanding and music appreciation; we need intelligent
information from the noise isolated. "
Hartley said that the next can greatly improve the cochlear implant system and the
performance of important areas, including: ubiquitous wireless connectivity and business
Low power consumption, a more intelligent scene analysis algorithm, and so that patients can
receive a the clinicians cochlear implant technology, with the patient or physician
The home has nothing to do. He explained: "The technology trends in the industry is the system
architecture and service models, it will minimize the visibility of the entire cochlear implant
Hartley is expected that the development of IC technology will provide wireless capabilities,
reduce system power consumption. He said: "I think the system design will continue to modular
According to their own changing needs of customize their own experience. "
Signal processing has greatly improved the performance of cochlear implant. Sound can create
the model, make the voice become a cycle of the sound source, rather than voice has become a
. The resonant characteristics of the channel can filter the frequency spectrum of the sound.
There is another way, the sound source can be modeled as a carrier, while the channel as a
Modulator, show the opening and closing of the mouth or nose. The sound source is usually rapid
changes in the filter response is much slower (Reference 3).
All modern cochlear implants, the internal unit to go through a percutaneous RF link
connected to the external unit, this is for the safety and convenience of the user
Think. RF link employs a pair of inductively coupled coils, not only transmit data, while the
transmission power. RF delivery unit there are some challenges, such as efficient
To amplify the signal and power, and maintain resistance to EMI. Its second function is to
provide a reliable communication protocol, including a signal modulation mode,
Bit encoding, frame coding, synchronization, and background telemetry detected.
The cochlear implant RF design may have many conflicting challenges need to be carefully
weighed. For example, to extend battery life, power transmitters
Must be power efficient design. Thus, many modern implants are high efficiency class E amplifier.
Class E amplifier is non-line, they have
Waveform distortion, limits the data transmission rate. Another challenge is the efficiency of
the high power requirements to transmit and receive coils. RF systems in order to obtain
Power to work in its resonant frequency or a narrow bandwidth, but the RF system data
transmission Shique can not limit the bandwidth. In addition, although these
The equipment requires a high transmission frequency, but that would require large coil. In a
practical design available, the size of the transmit and receive coils must
Small to an acceptable level from the cosmetic point of view.
The internal unit of the receiver and the actuator is the engine of the cochlear implant
(Figure 7). ASICs (dotted line) to perform critical functions, ensure safe and reliable
Electrical stimulation. It has a direct data path to the decoder to recover the digital
information from the RF signal, and errors and security checks to ensure
Paul correct decoding. Data distributor conversion multiplexer off state, after decoding the
electrical stimulation parameters sent to the programmable current source. Return to road
Diameter, including a background telemetry voltage sampler, used to read at some point on the
recording electrode voltage. Then, the PGA (programmable gain amplifier) ??amplification power
Pressure, the ADC converts it to the digital domain and stored in memory, then the background
telemetry sent to the external unit. ASIC also has a lot of control single
, Such as from the clock generation of the RF signal, until the instruction decoder. ASIC on the
integration of certain functions is not easy, such as voltage regulators, generators, coils and
RF tuning circuit, as well as the background telemetry data modulation, etc., but these areas are
DAC and a current mirror composed of a current source, the amplitude information from the
data decoder, resulting in the excitation current. The current source must be very precise, and
Full of challenges. For example, due to process variations, the MOSFET source and drain the
relationship is not constant, the same time, the voltage difference between gate and source
Drain the amount of current. Therefore, the circuit requires one to adjust the network for fine
adjustment of the reference current. New designs have only DAC in order to obtain the required
Precise current, without the use of the potentiometer. Ideal current source has infinite
impedance, so many designers are using the cascade current mirror, to pay on behalf of
The price is to reduce the voltage margin, an increase of power consumption.
These trade-offs must be carefully considered to achieve. Some cochlear implant more than one
current source, the older devices require a switching network, a
A current source connected to multiple electrodes. The new designs use multiple sequential or
simultaneous current source. In these designs, the P-channel and N-channel current source
You can generate incentives of positive and negative phase. The challenge is to match the P-
channel and N-channel current source to ensure that the balance of positive and negative charge.
Adaptive constant-current voltage can be reduced
Less power consumption, to maintain a high impedance.
Engineers prefer using ASK (Amplitude Shift Keying) modulation, rather than FSK (frequency
shift keying) modulation, ASK simple, and
Low-power high-frequency RF signal. Thanks to the tireless efforts of a team of engineers,
scientists, physicists and entrepreneurs and cooperation, security and costs of co-
Management incentive has resumed the hearing of more than 12 million people worldwide. These
prostheses have evolved into other neural prosthesis development model, is expected to increase
People's quality of life.
Part II: brain, heart and lungs of people suffering from encephalopathy and lung and heart
disease benefit from the 21st century electronics, biotechnology and medical technology
Momentum of biomedical electronics from the "baby boom" population aging and their health
care needs. This situation has stimulated new biotechnology
The rapid development of the technique, as well as innovation in the field of preventive
medicine, medical diagnosis, and treatment used. Later, the implantation techniques and advanced
wireless electronic media
Will help slow the rising medical costs of today's society, more health and longevity.
The first section discusses the eyes and ears, this section will discuss the brain, heart and
lungs, and the development of technology to improve engineering, biological and medical
Between the bridge and enhance the function of these organs.
This article will reveal the new device miniaturization, portability, connectivity, user-
friendly, security, and reliability is how to attempt to achieve this purpose,
To improve the fragile nature of human aging or sick / injury required by the organs in the
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The sequence memory can constitute a fully functio
SCM technology in data collection and monitoring process
Abstract: The application of single-chip micro-intelligent system for the collection of
output data: voltage, current and potential measurement, display and print. 8031 microcontroller
As the core, the 8031 ??microcontroller has an 8-bit CPU, a 128-byte RAM, 21 special function
registers, four 8-bit parallel I / O port, a dual
Working asynchronous serial ports, two 16-bit timer / counter, five priority level interrupt
source. 8031 add-in a program memory can structure
Into a fully functional computer application circuits.
Keywords: 8031 ??microcontroller; data acquisition; A / D conversion
Software instruction cycle is short, but also has the multiply and divide instructions, and
various forms of bit-oriented instructions, logical operations class instruction is also unique
. Signal modulation circuit, output current, voltage, and the potential signal is converted into
standard signals of 0 to 5V via a serial A / D converter chip
ADC0834 converted into digital signals for storage, display and print. Hardware terms of
interference is to use the MAX707, the power to play a monitoring role in the electricity and
Automatically reset when the power-down. Real-time clock aspect used the DS12887 new clock chip,
the case of power outages over a 10-year loss of data, the seconds, minutes,
Hours, days, weeks, days, months, years, and leap year compensation function, you can use binary
digital or BCD code that, in calendar and alarm. Software structural design
Meter modular program design, including digital filtering, software watchdog and software such as
anti-jamming subroutine, add the periphery of the Department of Intelligent potentiostat
System, user analysis, data processing, to understand the instrument, thus effective treatment.
(1) signal data acquisition. To 0 ~ 100V Output voltage and current to 0 ~ 100A, the
potential of -2 to 0V, the output (display, print) to retain a small
(2) man-machine dialogue function. Set the correct time via the keyboard, select the display
parameters and the corresponding function.
(3) print output.
(4) alarm function. When a system failure, such as the output open circuit, and overcurrent
fault, the buzzer output alarm to alert the user to troubleshoot.
1 Hardware Design
8031 microcontroller as the core and 8031 ??microcontroller has an 8-bit CPU, a 128-byte RAM,
21 special function registers, 4 and 8
Line I / O port, a full-duplex asynchronous serial ports, two 16-bit timer / counter, five
priority level interrupt source. 8031 external one-way
The sequence memory can constitute a fully functional computer application circuits.
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By Windows8 desktop application programming interf
Microsoft is the Windows8 Tablet PC and the PC mate Dolby
Dolby Laboratories (NYSE: DLB) today announced that Microsoft (Microsoft) has selected the
Dolby Digital +
(DolbyDigitalPlus) for the Windows8 Tablet PC and PC to provide the most realistic and immersive
audio experience. Dolby Digital Plus will allow more
The multi-device capable of playing Dolby encoded. The move highlights the Dolby Digital + for
online entertainment services and personal media applications to provide high-quality audio
Played a crucial role.
Dolby Laboratories, sales and marketing executive vice president RamziHaidamus said: "Whether
the entertainment content through broadcast television, broadband,
Or wireless network for transmission, Dolby's goal is always to provide the best entertainment
experience that can be achieved. We are very pleased to be working with Microsoft to meet City
The field's growing demand for high-definition content through a variety of services and
equipment. Windows8 wide range of Dolby Digital Plus will allow more people to be able at any
Anywhere on any device to enjoy theater-quality audio. "
Rapid growth in demand for video content through the network to download and watch online
entertainment content, in particular, many consumers want to download or watch online
TV and movies with Dolby Digital Plus audio, this cooperation will ensure that consumers can
enjoy excellent audio experience. "Microsoft Windows and
, Says: "In addition, consumers of all existing and future with Dolby Digital Plus audio
recording the WindowsLive chief financial officer and chief marketing officer TamiReller
Home videos through Windows8 direct playback of high-quality audio. "
Currently, there are over 640 million products using Dolby Digital Plus. Dolby Digital Plus
and changing the entertainment experience, it is considered a variety of types of products
Standard to provide high-quality audio products, including smart phones, tablet PCs, PC,
networked TVs, Blu-ray player (Blu-
rayDiscplayers) and game consoles.
By Windows8 desktop application programming interface (API) and the Metro-style applications,
including applications developed for the x86 and ARM architectures
Developers to provide the highest level of immersive experience and a theater-like sound. Is
authorized to run Windows 8, Windows8Pro Professional and
The WindowsRT version of the Tablet PC and the PC will support +5.1 channel decoding of Dolby
Digital and Dolby Digital two-channel encoding.
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Are unable to meet this requirement, Apple will lo
the iPhone the 4S touch panel orders will be reduced by 15% to 20%
Recently there have been news that Apple will to cut iPhone4S component orders, Taiwan media
DigiTimes expects the second half of 2012 iPhone4S touch panel
The orders will decline 15% -20%.
It is understood that the TPKHolding (TPK) and Wintek (Wintek) is a major supplier of the
Apple touch panel, their income will be strict
Re-affected. The message indicates that the TPKHolding and Wintek the second half of Apple's
touch panel shipments will only be equivalent to the shipments in the first half of
The news that TPKHolding and Wintek panel shipments will decline 15-20% mainly due to the
upcoming next generation iPhone. According to reports,
The next generation iPhone will be released in the third quarter of this year, using the in-cell
touch panel, the panel will make the device thinner and lighter, will
By Sharp and Toshiba.
If this is true, it is bound to give the iPhone touch panel supplier TPK and Wintek have a
great impact, because the two companies
Are unable to meet this requirement, Apple will lose 10% of their income.
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The proposed technology allows a server to support
LG cloud monitor CPU and memory devices
Distance not a few days to release its own cloud storage service, the LG is the latest
release of the P series for the corporate network cloud display, in addition to the display
, It the "zeroclient" (zero client) workstation with a single LAN cable (double power), a
keyboard, a mouse can
Work, and greatly reduced the cost of doing business.
LG clouds monitor,
Click here to view all news photos
According to reports, LG cloud monitor using the PC-over-IP protocol to almost all the number
crunching, it gets the data, rendering the image, by like
Prime compression and encryption rendered image pixels, and then sent to the client through the
low-latency UDP protocol.
Receiving client work to be done only for image decoding and playback, without the CPU,
memory type of thing. Moreover, this simple
Very low maintenance costs of a single hardware device, do not have any compatibility issues
between the host and client, and display a longer life cycle. Other
In addition, the client does not need to install the operating system or software upgrades to
centrally manage data, thereby improving network security.
In addition, the system developed by Cisco UniversalPoweroverEthernet (Universal Power over
Ethernet) technology, through the LAN data cables
Provides 60W of electricity, for LG cloud displays have been sufficient, since it only consumes
about 15W of power, and finally, the report said, the VMware virtual
The proposed technology allows a server to support multiple monitors, and enables administrators
to perform a system upgrade without causing interruption to update.
Finally, the message said, LG's cloud computing display about 23 inches, using the IPS
screen, rather than a TN screen, can be perfect at any angle
Color reproduction, image quality is excellent, but can also reduce visual fatigue, ideal for
vision-based professionals, such as graphic design
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Week announced plans to higher margin sales of sma
Ultrasound heavy volume of electronic touch screen new look at Intel's ultra this
After the Spring Festival, with large orders of the resurgence of 2.3 billion yuan, Yu Shun
price January doubled to become the first bull stock ran out this year; in the previous half
Month or so, the ultrasonic electronic bulletin touchscreen Central Purchasing, which marked ZTE
2012, just somewhat less than the order size.
However, compared to Yu Shun a quarterly loss, reported that pre-reduction, ultrasonic
electronic performance of many dazzling. With Angela technology, EPI precision
, As the company benefited from continued growth in the mobile communication terminal sales of
mobile phones, tablet PCs, which from the CCL and PCB manufacturers
Cut into the downstream of the industrial chain. Other touch screen companies with A shares,
ultrasonic electronics product line has been extended to the emerging super in this field.
Touch screen products last year, a big bang
The supersonic electronics industry originally focused Printed Circuit Board (PCB) field, the
companies produce both do the PCB material CCL, but also the production of the PCB.
Since last year, go to the touch screen market for the company's focus. Ultrasonic
Electronics said, this change is with downstream customers products - ZTE
The structural changes appear.
Ultrasonic electronic investment of 89.96 million yuan in 2010, construction of a capacitive
touch screen production line with an annual capacity of 45,000 square meters, the original plan
put into operation in July that year
, And then because of technical modification, augmented by a further 45,000 square meters / year
of new capacity. Mainstream smart phone screen size of 3.5 inches, approximately corresponding to
20 million to 24 million units capacity.
The performance of the company are increasing. In 2011, the company achieved operating income
of 3.29 billion yuan, up 10.4 percent; net profit of 182 million yuan, up by
Of 12.57%. A quarterly revenue and net profit reached 934 million yuan and 67.039 million yuan,
an increase of 26.4% and 72.2%, respectively; and notice
Reporting the results pre-year increase of 50% to 80% growth due to the high-level HDI board
needs to capacitive screens for smart phones.
Customer demand to promote the expansion
A shares a large touch screen company, but each production capacity, customer structure and
position in the industry to differ materially. The high-end products dominated the largest
Nature is leading Leybold Tech, over 50% gross margin to peer companies, bypassing about 20
percentage points; long letter did not disclose the shipment share of end customers
Samsung (microblogging), but has won, Sony, Panasonic and related certification; Ophelia light
started out in old-fashioned resistive touch screen, it was mainly Sky, Jin Yu
Long Cool in the low-end mobile phone customers, but last year announcement to get the Samsung
Ultrasonic Electronics is the only one from the other areas of the industry chain transfer to
the company. And its clients have overlapping Yu Shun Electronics, ZTE communication
(microblogging), this year
The degree of cell phone touch screen product tender, ultrasonic electronics to get the order
amount is 779 million yuan, Yu Shun own estimates $ 23 billion.
Have not previously been cut into the touch screen products, ZTE Yu Shun PCB products, major
customers; touch screen With the company production carve out last year, ZTE into
Its largest customers contributed 16% of revenue. ZTE nearly two years, mobile phone shipments to
enhance amazing, 2010, the total mobile phone sales and sales of smartphones
Were 61.07 million and three million, two figures each, $ 90 million and 15.9 million by 2011;
the sales target this year, ZTE
Week announced plans to higher margin sales of smart phones than last year doubled to 30 million.
Also expansion of the supersonic electronics. In May last year, the company announced that it
will not be less than the price of 13.8 yuan / share, non-public offering is not more than 6800
Set up to 850 million yuan of funds to invest in the expansion of the touch screen, two projects,
of which 600 million yuan will be put into the touch-screen project, adding 250,000 square meters
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The annual growth rate of 20%. Since 2004, more th
E-passports was officially opened on 15 visitors can self-clearance
The reporter learned from the Ministry of Public Security on the 3rd, the public security
organs across the country will be unified on the 15th enabled the issue of electronic ordinary
Ministry of Public Security the person in charge, the bearer can be used directly in the
future self-service via China's border inspection of civil immigration will be more convenient
Fingerprint will be deposited into the e-passport chip
According to reports, some people have worried about personal information disclosure issue,
the Ministry of Public Security official said the bearer's personal information, face,
Fingerprints and other biometric deposited in ordinary e-passport chip, on the one hand, to
ensure that the electronic ordinary passport control and bearer witnesses only can effectively
To prevent fraud to obtain the passport act to safeguard the legitimate rights and interests of
the bearer; the other hand, will be the bearer such as self-clearance more convenient
The immigration services to the provision of technical conditions.
In the bearer's information security, electronic ordinary passport was fully taken into
account. Electronic ordinary passport chip in accordance with ICAO
Standard high-security smart cards, chip data through the high security strength of asymmetric
cryptography to protect the fingerprint information is only my passport signed
Fat organs and the frontier inspection offices, through the special decoding device can read and
restore domestic and foreign individuals and institutions are unable to read and restore, and
Strong electronic ordinary passport of the bearer of personal information protection.
Bid conditions of the time limit fees unchanged
It is understood that the conditions of ordinary passports apply for new electronic, time
limits and fees are the same as in the past, only an increase in the handling procedures
Collection of applicant fingerprints and sign your name on the spot content. Ordinary electronic
passport design printed more prominent elements of national image, and select
A large number of design elements with Chinese characteristics, covering many aspects of the
humanities, history, geography and the nation.
Ministry of Public Security to remind the bearer to pay attention to sensitive electronic
components built into the electronic Ordinary passport, in order to maintain its optimal
performance, not to ordinary electronic passport
Bending, punching, or exposed to extreme temperatures, humidity environments.
The data show that of ordinary passports issued jumped from the mid-1990s, one million to 10
million, and still every year nearly
The annual growth rate of 20%. Since 2004, more than 90 countries and regions around the world
have been issued to enable the electronic passport.
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