Patent application number | Description | Published |
20100226055 | ELECTROSTATIC DISCHARGE PROTECTION DEVICES - An electrostatic discharge (ESD) protection circuit having first and second transistors and an ESD clamp circuit. The first and second transistors are coupled in series between first and second voltage input pins of a chip. The ESD clamp circuit is coupled between the first and second voltage input pins. The drains of the first and second transistors are coupled to an I/O pin of the chip. The doping regions of the first and second transistors are of distinct doping concentrations. The first transistor comprises four doping regions, and has a source formed by the first and third doping regions, and has a drain formed by the second and the fourth doping regions. The first doping region is within the third doping region. The second doping region is within the fourth doping region. The doping concentration of the fourth doping region is less than that of the third doping concentration. | 09-09-2010 |
20110095368 | ELECTROSTATIC DISCHARGE PROTECTION DEVICE - An electrostatic discharge protection device is disclosed. The electrostatic discharge protection device preferably includes a first transistor, a second transistor, and an electrostatic discharge clamping circuit. The first transistor includes a first drain electrically connected to an input/output pin of a chip, a first source electrically connected to a first voltage input pin of the chip, and a first gate. The first drain is preferably an internally shrunk drain. The second transistor includes a second drain electrically connected to the input/output pin of the chip, a second source electrically connected to a second voltage input pin and a second gate. The electrostatic discharge clamping circuit is electrically connected to the first voltage input pin and the second voltage input pin. | 04-28-2011 |
20120126856 | Adjustable Voltage Comparing Circuit and Adjustable Voltage Examining Device - In an adjustable voltage examining module, while a logic tester issues an input signal to an audio module under test, upper/low-threshold reference signals are simultaneously issued to an adjustable voltage comparing circuit. While the adjustable voltage comparing circuit receives a signal under test returned by the to-be-examined audio module after a while, the adjustable voltage comparing circuit loads both an high-threshold reference voltage and a low-threshold reference voltage respectively indicated by the reference upper/low-threshold signal so as to compare both the upper and low-threshold reference voltages with the signal under test. Therefore, while the signal under test is examined to acquire a voltage level between voltage levels of the upper and low-threshold reference signals, precise operations of the audio module under test are assured, and time wasted by continuously-issued interrupt is saved. | 05-24-2012 |
20120163798 | Controlling Circuit for Analog Measurement Module and Controlling Module thereof - In a controlling circuit, a photo coupler is used for isolating noises, and a general purpose amplifier is used for adjusting a gain, so that a logic tester may test analog signals in cooperation with relays having different specifications and operating voltage level differences in an analog measurement module. A shift register of each controlling circuit of a controlling module also transmits a test data signal to a next stage controlling circuit, so that a logic tester may simultaneously output a plurality of bits to multiple controlling circuits and multiple analog measurement modules by using merely one I/O port. | 06-28-2012 |
Patent application number | Description | Published |
20100022848 | PHYSIOLOGICAL STATUS MONITORING/POSITIONING SYSTEM - A physiological status monitoring/positioning system is disclosed, which comprises: a physiological status sensing device, being configured with at least a sensing unit and a signal transmitting unit to be used for detecting and transmitting a physiological attribute of a living entity; a positioning device, being configured with a second signal transceiving unit to be used for transmitting a second signal to a positioning system where the location of the living entity is identified; a calculation device, being configured with a first signal transceiving unit for receiving the physiological attribute while converting the same into a bio index to be transmitted; a signal transceiver, for transmitting/receiving the bio index; and a display device, for displaying the identified location of the living entity as well as the bio index. With the aforesaid system, the physiological status of the living entity as well as its location can be monitored at the same time so that as soon as an abnormal physiological status of the living entity is detected, an immediate action can be taken in response to the emergency. | 01-28-2010 |
20100022851 | MEASUREMENT PROCESSING APPARATUS OF PHYSIOLOGY SIGNALS - A measurement processing apparatus is disclosed for processing plurality of physiology signals. The measurement processing apparatus includes a multiplex device, an analog-to-digital conversion module and a control signal generator. The multiplex device generates a multiplex signal composed of the physiology signals with output sequence controlled by a first control signal. Furthermore, the multiplex device dispenses each physiology signal with one corresponding multiplex density based on the first control signal. The analog-to-digital conversion module converts the multiplex signal into a digital multiplex signal based on at least one adjustable bias voltage under control of a second control signal. The control signal generator generates the first control signal based on the feature values of the physiology signals. Also, the control signal generator generates the second control signal based on the voltage swing ranges of the physiology signals. The second control signal is synchronized with the first control signal. | 01-28-2010 |
20110051830 | METHODS AND RECEIVERS OF CARRIER FREQUENCY OFFSET DETECTION - A receiver used for an orthogonal frequency-division multiplexing (OFDM) system is provided. A signal processing device receives an OFDM symbol and processes the OFDM symbol according to the OFDM symbol and a carrier frequency offset compensation coefficient to generate a processed signal. The OFDM symbol includes pilots which have been hierarchically modulated and the processed signal includes the processed pilots. A signal analysis device collects the processed pilots of the processed signal and detects carrier frequency offset to generate the carrier frequency offset compensation coefficient to the signal processing device according to the processed pilots and a plurality of target decision bit error rates. A channel detection module detects a channel response of the processed signal according to the processed pilots and compensates the processed signal to generate an output data. | 03-03-2011 |
20110096814 | METHODS FOR CARRIER FREQUENCY OFFSET DETECTION AND COMPENSATION AND TRANSMITTERS AND RECEIVERS UTILIZING THE SAME - A transmitter includes an encoding module, an adaptive hierarchical signal mapping module and a transceiver module. The encoding module receives an input signal and encodes the input signal. The input signal includes data to be transmitted. The adaptive hierarchical signal mapping module modulates the encoded signal according to one or more hierarchical level distance ratios to obtain modulated symbols. The hierarchical level distance ratio defines distances between the modulated symbols. The transceiver module generates a radio frequency signal according to the modulated symbols and transmits the radio frequency signal to an air interface. | 04-28-2011 |
Patent application number | Description | Published |
20090180434 | CENTRAL CONTROL APPARATUS, SIGNAL TRANSMISSION APPARATUS AND SIGNAL FORWARDING APPARATUS FOR USE IN A MULTI-HOP WIRELESS NETWORK - The present invention provides a central control apparatus, a signal transmission apparatus and a signal forwarding apparatus for use in a multi-hop wireless network. The central control apparatus is configured to build a universal control (UC) channel between the central control apparatus, the signal transmission apparatus and the signal forwarding apparatus. Through the UC channel, the signal transmission apparatus may exchange control signals with the central control apparatus directly, so as to improve the transmission delay of the control signals. | 07-16-2009 |
20090274111 | BASE STATION, SUBORDINATED STATION AND TRANSMISSION METHOD THEREOF - A base station (BS), a subordinated station (SS) and the transmission methods thereof for use in a multi-input multi-output (MIMO) network are provided. The BS stores resource allocation information about the MIMO network and an SS list, and generate a super frame according to the resource allocation information and the SS list. The super frame comprises a pilot pattern which comprises a plurality of pilots and data. The BS and SS both considers the pilot pattern as an identifier of the SS. When there are communications occurred between the BS and the SS, the BS/SS will confirm whether the pilot pattern of the super frame matches the identifier of the SS to reduce interference from other stations in the MIMO network. | 11-05-2009 |
20090274231 | BASE STATION, SUBORDINATED STATION AND TRANSMISSION METHOD THEREOF - A base station (BS), a subordinated station (SS) and the transmission methods thereof for use in a multi-input multi-output (MIMO) network are provided. The BS stores resource allocation information about the MIMO network and an SS list, and generate a super frame according to the resource allocation information and the SS list. The super frame comprises a pilot pattern which comprises a plurality of pilots and data. The BS and SS both considers the pilot pattern as an identifier of the SS. When there are communications occurred between the BS and the SS, the BS/SS will confirm whether the pilot pattern of the super frame matches the identifier of the SS to reduce interference from other stations in the MIMO network. | 11-05-2009 |
20130109430 | MOBILE APPARATUS, BASE STATION, DIRECT COMMUNICATION SYSTEM AND POWER CONTROL METHOD THEREOF | 05-02-2013 |
Patent application number | Description | Published |
20080278317 | REAL-TIME MONITOR SYSTEM - A real-time monitor system including at least one public facility, a second wireless transceiver, and a control center is provided. The public facility includes a power generator, a load, a signal generator, and a first wireless transceiver. An initial power provided by the power generator drives the load. The signal generator determines whether or not to output a condition signal and a positioning signal according to whether the load is driven. Then, the condition signal and the positioning signal are emitted to the second wireless transceiver by the first wireless transceiver. Therefore, the control center determines the service condition of the public facility according to the information of the condition signal or whether the condition signal is received, and determines the position of the public facility according to the positioning signal. | 11-13-2008 |
20080297335 | DRIVING EFFICIENCY MANAGEMENT APPARATUS AND METHOD THEREOF - A driving efficiency management apparatus and a method thereof are provided. The driving efficiency management apparatus includes a detection unit, a storage unit, a processing unit, and a display. The detection unit detects the driving condition of a vehicle and generates a driving information. The storage unit receives and stores the driving information. The processing unit compares the driving information and generates an economical performance information and an optimal driving operation information according to the comparison result. The display displays the economical performance information or the optimal driving operation information. | 12-04-2008 |
20110142106 | METHODS AND TRANSCEIVERS FOR CHANNEL CLASSIFICATION - A transceiver used for an orthogonal frequency-division multiplexing (OFDM) system is provided, including: a signal processing device for receiving an OFDM symbol and processing the OFDM symbol to generate a processing signal according to the OFDM symbol, wherein the OFDM symbol having pilots which have been hierarchically modulated; a pilot signal analysis device for collecting the processing pilots of the processing signal and demodulating the processing pilots to generate a plurality of levels where one of the plurality of levels comprises a plurality of refinement bits; a degree difference analysis module for generating a plurality of degree differences according to the refinement bits and detecting channel classification according to the degree differences to transmit a channel classification signal; and a channel detection module for generating and transmitting a best modulation indication signal to another transceiver to adjust modulation scheme according to the channel classification signal. | 06-16-2011 |