Issc Technologies Corp.

Audiowise Technology Inc.

Integrated System Solution Corporation

Other

Winbond Electronics Corporation

Pixart Imaging Incorporated

Microchip Technology Inc.

The Directv Group, Inc.

Jeng-Hong Chen

Kuang-Hu Huang

Wei-Chung Peng

Chih-Wei Sung

Jing-Syuan Jia

I-Ken Ho

Pete Hsinhsiang Liu

De-Hao Tseng

Pansop Kim

Wei-Chih Chen

Peng-Sen Chen

Chin-Chang Chang

Hsin-Hsiang Liu

Chun-Yuan Huang

Hsiang-Te Ho

Zhi-Qing Huang

Chih-Ching Huang

Ernest C Chen

Mei-Show Chen

Yumin Lee

Hsinhsiang Liu

Joungheon Oh

Huei-Ming Yang

Che-Kang Sun

Hsin-Hsu Chi

Yuh-Chun Lin

Kenneth Shum

A method applied into a controller of a wireless Bluetooth device includes: providing a first flag and a second flag; asserting the first flag when the controller successfully receives the particular packet transmitted from the audio gateway; asserting the second flag when the controller successfully receives an acknowledgement from a secondary device wherein a reception of the acknowledgement indicates that the secondary device successfully receives the particular packet; and transmitting an acknowledgement of a particular packet to an audio gateway when the first flag and the second flag are asserted.

Wireless bluetooth communication mechanism capable of effectively reducing number of audio packet retransmission

A non-transitory computer readable medium storing at least one program, wherein a wireless communication method is performed while the program is executed. The wireless communication method comprises: (a) receiving a plurality of data groups, wherein the data groups do not pass an error checking procedure; (b) selecting a portion of at least one of the data groups; and (c) reconstructing a reconstruction data group based on the portions selected in the step (b).

Wireless communication method and wireless communication device which uses the wireless communication method

Wireless Bluetooth communication mechanism capable of effectively reducing number of audio packet retransmission

A method applied to a wireless Bluetooth audio communication system includes: providing an audio gateway of a first piconet to communicate with a master device in the first piconet and to transmit at least one packet of audio stream to the master device and a slave device; employing a first transceiver as the master device to receive the at least one packet of the audio stream from the audio gateway; and, employing a second transceiver as the slave device to receive the at least one packet of the audio stream from the audio gateway and to acknowledge the first transceiver whether the second transceiver has successfully received the at least one packet of the audio stream from the audio gateway.

Bluetooth audio communication system and method for acknowledging reception of packets of audio streams at a slave and master devices

A method applied into a wireless Bluetooth device includes: receiving a particular packet from an audio gateway through a first piconet; receiving a first acknowledgement from a secondary device through a second piconet, the first acknowledgement corresponding to a retransmission of the particular packet; and transmitting a second acknowledgement corresponding to the particular packet to the audio gateway through the first piconet when the particular packet is received through the first piconet and the first acknowledgement corresponding to the retransmission of the particular packet is received through the second piconet.

It is an objective of the present invention to provide a circuit with a wideband received signal strength indicator, used for multiple systems. By using the switches and the analog-to-digital converter and the demodulator, the circuit of the present invention has the advantages of auto gain control, circuit size reduction and power-saving.

Wireless communication circuit with a wideband received signal strength indicator

The present invention relates to an adaptive, high cost-performance efficient, and power-saving receiving method used for wireless communication systems, such as but not limited to Bluetooth (BT) system, in particular to a method which can detect the presence or absence of the adjacent channel interference (ACT) before the scheduled starting time for receiving a Bluetooth packet, and accordingly set the receiver configurations including the filter's pass-band bandwidth (BW), filter's order, the sampling rate or the number of analog-to-digital-converter (ADC) output bits, and the automatic-gain-control (AGC) algorithm to determine the low noise amplifier (LNA) and variable gain amplifier (VGA) settings.

Method used for providing an adaptive receiving in wireless communication

The present invention relates to an adaptive, cost-performance efficient, power-saving apparatus for wireless communication systems, such as but not limited to Bluetooth (BT) receivers, and in particular to a packet-based receiver's decoding algorithm which can detect the presence or absence of the adjacent channel interference (ACI) before the scheduled starting time for receiving a Bluetooth packet, and accordingly set the receiver configurations including the filter's pass-band bandwidth (BW), filter's order, the sampling rate, the number of analog-to-digital-converter (ADC) output bits, and the automatic-gain-control (AGC) algorithm unit to determine the low noise amplifier (LNA) and variable gain amplifier (VGA) settings.

Adaptive wireless communication receiver

The present invention discloses apparatus and method for fast and robust automatic gain control (AGC). By using the power statistics and/or the amplitude statistics of multiple pairs of signed ADC outputs, the additional gain control can be determined and included in a statistics-aided AGC to successfully complete the AGC function for a received signal having a dynamic range up to 100 dB within a few micro-seconds.

Fast and robust AGC apparatus and method using the same

The present invention discloses an apparatus and method for power-saving switch on a pair of configurable analog-to-digital converters. The apparatus mainly comprises an antenna, an antenna switch, a zero-IF RF receiver, and a baseband demodulator. By using a first and a second control signal to control the ON/OFF states of a plurality of switches and a plurality of stage units in the configurable analog-to-digital converters, and the third control signal to control the ON/OFF states of a plurality of LNA stages and the gain of a plurality VGAs, the power saving of the analog-to-digital converter is easily achieved.

Power-saving apparatus used for wireless communication receiver and system, and method using the same

An acquisition scheme is provided for receiving a Bluetooth basic data rate (BDR) or enhanced data rate (EDR) packet. An acquisition apparatus for a Bluetooth receiver includes: a phase differentiator; a plurality of basic building blocks; a plurality of 1-bit switches; and a correlation computation equation. It features an acquisition circuit implementation with 1-bit correlator hardware shared by access code and EDR synchronization sequence correlation computations.

Simplified acquisition apparatus and method for a Bluetooth receiver

Growing community of inventors

Temple City, CA, United States of America

Jeng-Hong Chen