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公开(公告)号：US20210136126A1
公开(公告)日：2021-05-06
申请号：US17144929
申请日：2021-01-08
Applicant: Lattice Semiconductor Corporation
Inventor： Shrikant Ranade , Lei Ming , Jiong Huang
Abstract: A source device and a sink device may be connected using an interface cable comprising at least first and second physical channels. The first physical channel may be used to transmit video data unidirectionally from the source device to the sink device. In addition, the second physical channel may comprise an audio return channel wherein audio data can be transmitted unidirectionally from the sink device to the source device at a first rate. In addition, the second physical channel may also transmit bidirectional control data between the source and sink devices at a second rate slower than the first rate. The audio data may be overlaid on the control data, wherein the audio data is transmitted using differential signaling, while the control data is transmitted using common mode signaling.
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公开(公告)号：US10211853B2
公开(公告)日：2019-02-19
申请号：US15228409
申请日：2016-08-04
Applicant: Lattice Semiconductor Corporation
Inventor： Jiong Huang , Alexander Peysakhovich , Lei Ming
Abstract: Example embodiments disclosed herein relate to a method of transmitting an audio signal and also a method of receiving an audio signal. The method of transmitting the audio signal includes: receiving the audio signal including a plurality of frames having a left and right subframes containing audio data of a first number of bits; encoding the left and right subframes into a parity code of a second number of bits; generating serial data by combining the parity code and the audio data; and transmitting the serial data over an audio transmission media having a bandwidth of a third number of bits, a sum of the first number of bits and the second number of bits being below the third number of bits. The method of receiving the audio signal includes: receiving a serial signal combining a parity code; decoding the serial signal by calculating a syndrome based on the parity code; detecting an error by comparing the syndrome with the audio data; and generating a corrected audio signal by correcting the detected error.
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公开(公告)号：US10043480B2
公开(公告)日：2018-08-07
申请号：US14474005
申请日：2014-08-29
Applicant: Lattice Semiconductor Corporation
Inventor： Jiong Huang , Lei Ming , Gyudong Kim , Young Il Kim
IPC: H04J3/00 , G09G5/00 , G06F13/362 , G06F13/42
Abstract: A source device communicates multimedia data to a sink device over a multimedia channel of a multimedia link. The source device comprises an interface to a full duplex control channel of the multimedia link. The source device also comprises first arbitration logic to control transfer of control data with the sink device via the full duplex control channel. The first arbitration logic ignores requests to receive inbound control data from the sink device while the source device is transmitting outbound control data to the sink device. The sink device, on the other hand, comprises second arbitration logic to control transfer of control data with the source device via the full duplex control channel. The second arbitration logic stops transmitting outbound control data via the full duplex control channel responsive to receiving a request to receive incoming control data from the source device.
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公开(公告)号：US11258833B2
公开(公告)日：2022-02-22
申请号：US17144929
申请日：2021-01-08
Applicant: Lattice Semiconductor Corporation
Inventor： Shrikant Ranade , Lei Ming , Jiong Huang
IPC: H04L29/06 , H04L65/1069 , H04L65/60 , H04N21/44 , H04N21/4363 , G06F11/07 , H04L1/00 , H04N21/81 , H04L1/16 , H04N21/439 , H04L1/18
Abstract: A source device and a sink device may be connected using an interface cable comprising at least first and second physical channels. The first physical channel may be used to transmit video data unidirectionally from the source device to the sink device. In addition, the second physical channel may comprise an audio return channel wherein audio data can be transmitted unidirectionally from the sink device to the source device at a first rate. In addition, the second physical channel may also transmit bidirectional control data between the source and sink devices at a second rate slower than the first rate. The audio data may be overlaid on the control data, wherein the audio data is transmitted using differential signaling, while the control data is transmitted using common mode signaling.
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公开(公告)号：US20190253083A1
公开(公告)日：2019-08-15
申请号：US16277840
申请日：2019-02-15
Applicant: Lattice Semiconductor Corporation
Inventor： Jiong Huang , Alexander Peysakhovich , Lei Ming
CPC classification number: H03M13/3746 , G06F13/4282 , H03M13/152 , H03M13/27 , H04L9/065 , H04L2209/20 , H04L2209/34
Abstract: Example embodiments herein relate to methods of transmitting and receiving audio signals. A method of transmitting an audio signal includes: receiving the audio signal including frames having left and right subframes containing audio data of a first number of bits; encoding the left and right subframes into a parity code of a second number of bits; generating serial data by combining the parity code and audio data; and transmitting the serial data over an audio transmission media having a bandwidth of a third number of bits, a sum of the first and second number being below the third number. A method of receiving an audio signal includes: receiving a serial signal combining a parity code; decoding the serial signal by calculating a syndrome based on the parity code; detecting an error by comparing the syndrome with the audio data; and generating a corrected audio signal by correcting the detected error.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20170054552A1
公开(公告)日：2017-02-23
申请号：US15228409
申请日：2016-08-04
Applicant: Lattice Semiconductor Corporation
Inventor： Jiong HUANG , Alexander Peysakhovich , Lei Ming
CPC classification number: H03M13/3746 , G06F13/4282 , H04L9/065 , H04L2209/20 , H04L2209/34
Abstract: Example embodiments disclosed herein relate to a method of transmitting an audio signal and also a method of receiving an audio signal. The method of transmitting the audio signal includes: receiving the audio signal including a plurality of frames having a left and right subframes containing audio data of a first number of bits; encoding the left and right subframes into a parity code of a second number of bits; generating serial data by combining the parity code and the audio data; and transmitting the serial data over an audio transmission media having a bandwidth of a third number of bits, a sum of the first number of bits and the second number of bits being below the third number of bits. The method of receiving the audio signal includes: receiving a serial signal combining a parity code; decoding the serial signal by calculating a syndrome based on the parity code; detecting an error by comparing the syndrome with the audio data; and generating a corrected audio signal by correcting the detected error.
Abstract translation: 本文公开的示例实施例涉及发送音频信号的方法以及接收音频信号的方法。 发送音频信号的方法包括：接收音频信号，包括具有包含第一位数的音频数据的左和右子帧的多个帧; 将左和右子帧编码为第二位数的奇偶校验码; 通过组合奇偶校验码和音频数据产生串行数据; 以及通过具有第三比特数的带宽的音频传输媒体发送所述串行数据，所述第一比特数和所述第二比特数的和低于所述第三比特数。 接收音频信号的方法包括：接收组合奇偶校验码的串行信号; 通过基于奇偶校验码计算校正子来解码串行信号; 通过将综合征与音频数据进行比较来检测错误; 以及通过校正检测到的误差来产生校正的音频信号。
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公开(公告)号：US10979083B2
公开(公告)日：2021-04-13
申请号：US16277840
申请日：2019-02-15
Applicant: Lattice Semiconductor Corporation
Inventor： Jiong Huang , Alexander Peysakhovich , Lei Ming
Abstract: Example embodiments herein relate to methods of transmitting and receiving audio signals. A method of transmitting an audio signal includes: receiving the audio signal including frames having left and right subframes containing audio data of a first number of bits; encoding the left and right subframes into a parity code of a second number of bits; generating serial data by combining the parity code and audio data; and transmitting the serial data over an audio transmission media having a bandwidth of a third number of bits, a sum of the first and second number being below the third number. A method of receiving an audio signal includes: receiving a serial signal combining a parity code; decoding the serial signal by calculating a syndrome based on the parity code; detecting an error by comparing the syndrome with the audio data; and generating a corrected audio signal by correcting the detected error.
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8.发明授权Phase relationship control for control channel of a multimedia communication link 有权多媒体通信链路控制信道的相位关系控制公开(公告)号：US09490962B2
公开(公告)日：2016-11-08
申请号：US14470804
申请日：2014-08-27
Applicant: Lattice Semiconductor Corporation
Inventor： Jiong Huang , Lei Ming , Gyudong Kim , Young Il Kim
CPC classification number: H04L5/1415 , G06F13/40 , H04J3/0602 , H04J3/0617 , H04J3/16 , H04L5/1407 , H04L5/1469 , H04L5/16
Abstract: A multimedia system for data communications. A source device communicates over a full duplex control channel of a multimedia communication link using time domain multiplexed (TDM) frames having n time slots per frame. The source device allocates a first time slot position to a virtual channel for data transmission by the source device over the full duplex control channel. A sink device communicates over the full duplex control channel of the multimedia communication link. The sink device allocates a second time slot position to the virtual channel for data transmission by the sink device over the full duplex control channel. A timing of the second time slot position is offset from a timing of the first time slot position by substantially n/2 time slots.
Abstract translation: 一种用于数据通信的多媒体系统。 源设备使用具有每帧n个时隙的时域复用（TDM）帧在多媒体通信链路的全双工控制信道上进行通信。 源设备将虚拟信道的第一时隙位置分配给源设备通过全双工控制信道进行数据传输。 宿设备通过多媒体通信链路的全双工控制信道进行通信。 宿设备将虚拟信道的第二时隙位置分配给宿设备通过全双工控制信道进行数据传输。 第二时隙位置的定时偏离第一时隙位置的定时大致n / 2个时隙。
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公开(公告)号：US10931722B2
公开(公告)日：2021-02-23
申请号：US15829670
申请日：2017-12-01
Applicant: Lattice Semiconductor Corporation
Inventor： Shrikant Ranade , Lei Ming , Jiong Huang
IPC: H04L29/06 , H04N21/44 , H04N21/4363 , G06F11/07 , H04L1/00 , H04N21/81 , H04L1/16 , H04N21/439 , H04L1/18
Abstract: A source device and a sink device may be connected using an interface cable comprising at least first and second physical channels. The first physical channel may be used to transmit video data unidirectionally from the source device to the sink device. In addition, the second physical channel may comprise an audio return channel wherein audio data can be transmitted unidirectionally from the sink device to the source device at a first rate. In addition, the second physical channel may also transmit bidirectional control data between the source and sink devices at a second rate slower than the first rate. The audio data may be overlaid on the control data, wherein the audio data is transmitted using differential signaling, while the control data is transmitted using common mode signaling.
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公开(公告)号：US20180288106A1
公开(公告)日：2018-10-04
申请号：US15829670
申请日：2017-12-01
Applicant: Lattice Semiconductor Corporation
Inventor： Shrikant Ranade , Lei Ming , Jiong Huang
IPC: H04L29/06 , H04N21/44 , H04N21/4363 , H04N21/439 , H04L1/00 , G06F11/07
Abstract: A source device and a sink device may be connected using an interface cable comprising at least first and second physical channels. The first physical channel may be used to transmit video data unidirectionally from the source device to the sink device. In addition, the second physical channel may comprise an audio return channel wherein audio data can be transmitted unidirectionally from the sink device to the source device at a first rate. In addition, the second physical channel may also transmit bidirectional control data between the source and sink devices at a second rate slower than the first rate. The audio data may be overlaid on the control data, wherein the audio data is transmitted using differential signaling, while the control data is transmitted using common mode signaling.
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