公开(公告)号：US09667325B1

公开(公告)日：2017-05-30

申请号：US15085159

申请日：2016-03-30

Applicant: Industrial Technology Research Institute

Inventor： Chang-Jen Wang ,  Chao-Kai Wen ,  Jen-Yuan Hsu ,  Chiu-Ping Wu ,  Yu-Han Kao

IPC: H04L27/06 ,  H04B7/0413 ,  H04L27/38 ,  H03M1/12 ,  H03M1/00

CPC classification number: H04B7/0413 ,  H03M1/002 ,  H03M1/12 ,  H03M1/122 ,  H03M1/20 ,  H04L25/0202 ,  H04L27/38

Abstract: The present disclosure discloses a receiver device, including receiving antennas, radio frequency receivers, a configurable precision analog-to-digital converter, a switch device, a baseband processor, and an analog-to-digital controller. The switch device converts a first number of baseband analog signals into a second number of baseband analog signals. The configurable precision analog-to-digital converter converts the second number of baseband analog signals into a third number of first baseband digital signals. The configurable precision analog-to-digital converter combines at least two of first analog-to-digital converters into at least one second analog-to-digital converter so that the total number of the rest of the first analog-to-digital converters and the at least one second analog-to-digital converters is equal to the third number. The resolution of each of the second analog-to-digital converters is higher than the resolution of each of the first analog-to-digital converters.

公开(公告)号：US20180183472A1

公开(公告)日：2018-06-28

申请号：US15390543

申请日：2016-12-26

Applicant: Industrial Technology Research Institute

Inventor： Chao-Kai Wen ,  Chang-Jen Wang ,  Jing-Shiun Lin ,  Jen-Yuan Hsu ,  Dung-Rung Hsieh ,  Chiu-Ping Wu

IPC: H04B1/10 ,  H04L25/02 ,  H04B7/04 ,  H04L1/00 ,  H03M1/06

CPC classification number: H04B1/1027 ,  H03M1/06 ,  H03M1/0854 ,  H03M1/66 ,  H04B7/0417 ,  H04L1/0054 ,  H04L25/0256 ,  H04L25/0258 ,  H04L27/2647

Abstract: The disclosure is directed to an OFDM receiver with a low-resolution ADC and an electronic device thereof. According to one of the exemplary embodiments, the OFDM receiver may include not limited to: an ADC module which receives a transmission signal of a channel in an analog format and digitizes the transmission signal into a digital format to generate a quantized transmission signal; an error compensating and estimating module which is coupled to the ADC module, receives the quantized transmission signal and a feedback signal which is a first estimated time-domain transmission signal to generate an estimated error signal according to a turbo iterative updating technique; and a signal estimating module which is coupled to the error compensating and estimating module, receives the estimated error signal and a channel attenuation coefficient of the channel to generate an estimated transmission signal.

公开(公告)号：US10312953B2

公开(公告)日：2019-06-04

申请号：US15390543

申请日：2016-12-26

Applicant: Industrial Technology Research Institute

Inventor： Chao-Kai Wen ,  Chang-Jen Wang ,  Jing-Shiun Lin ,  Jen-Yuan Hsu ,  Dung-Rung Hsieh ,  Chiu-Ping Wu

IPC: H04B7/0417 ,  H04B1/10 ,  H03M1/06 ,  H03M1/08 ,  H04L1/00 ,  H04L27/26 ,  H04L25/02 ,  H03M1/66

Abstract: The disclosure is directed to an OFDM receiver with a low-resolution ADC and an electronic device thereof. According to one of the exemplary embodiments, the OFDM receiver may include not limited to: an ADC module which receives a transmission signal of a channel in an analog format and digitizes the transmission signal into a digital format to generate a quantized transmission signal; an error compensating and estimating module which is coupled to the ADC module, receives the quantized transmission signal and a feedback signal which is a first estimated time-domain transmission signal to generate an estimated error signal according to a turbo iterative updating technique; and a signal estimating module which is coupled to the error compensating and estimating module, receives the estimated error signal and a channel attenuation coefficient of the channel to generate an estimated transmission signal.

公开(公告)号：US10291335B1

公开(公告)日：2019-05-14

申请号：US15855765

申请日：2017-12-27

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chao-Kai Wen ,  Chang-Jen Wang ,  Jung-Chieh Chen

IPC: H04B17/12 ,  H04B7/06

Abstract: The beamforming calibration system includes a transmitter, a receiver, and a computing device. The transmitter includes multiple transmitting antennas. The computing device provides multiple phase sets to the transmitter. When the computing device provides a first phase set among the phase sets to the transmitter: the transmitter uses the first phase set to set phases of the transmitting antennas, the receiver receives wireless transmission signal from the transmitting antennas to obtain a first radiation pattern corresponding to the first phase set, and the computing device is configured to compare the first radiation pattern with a predetermined pattern to calculate a pattern similarity score corresponding to the first phase set. The computing device selects a calibration phase set among the phase sets according to the pattern similarity score of each phase set, and provides the calibration phase set to the transmitter to calibrate beamforming.