RECEIVING CIRCUIT, DISPLAY DRIVER AND DISPLAY DEVICE
PROBLEM TO BE SOLVED: To provide a receiving circuit suitable for communication in the HS mode of MIPI C-PHY.SOLUTION: A receiving circuit 10 includes a differential receiver 13a generating a signal A-B corresponding to the difference of signals A, B, a differential receiver 13b generating a signal...
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Format | Patent |
Language | English Japanese |
Published |
22.06.2017
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Abstract | PROBLEM TO BE SOLVED: To provide a receiving circuit suitable for communication in the HS mode of MIPI C-PHY.SOLUTION: A receiving circuit 10 includes a differential receiver 13a generating a signal A-B corresponding to the difference of signals A, B, a differential receiver 13b generating a signal B-C corresponding to the difference of signals B, C, a differential receiver 13c generating a signal C-A corresponding to the difference of signals C, A, a clock recovery circuit 14 generating a clock signal in response to zero-cross of the signals A-B, B-C, C-A, and D flip-flops 15a, 15b, 15c for latching the signals A-B, B-C, C-A in synchronism with the clock signal. The clock recovery circuit 14 is configured to detect zero-cross of the signals A-B, B-C, C-A upon occurrence of state transition of the signals A, B, C, and to generate the clock signal in synchronism with the first zero-cross, when zero-cross is detected in the plurality of signals A-B, B-C, C-A.SELECTED DRAWING: Figure 5
【課題】MIPI C−PHYのHSモードでの通信に適した受信回路を提供する。【解決手段】受信回路10は、信号A、Bの差分に対応する信号A−Bを生成する差動レシーバ13aと、信号B、Cの差分に対応する信号B−Cを生成する差動レシーバ13bと、信号C、Aの差分に対応する信号C−Aを生成する差動レシーバ13cと、信号A−B、B−C、C−Aのゼロクロスに応答してクロック信号を生成するクロック再生回路14と、クロック信号に同期して信号A−B、B−C、C−AをラッチするDフリップフロップ15a、15b、15cとを具備する。クロック再生回路14は、信号A、B、Cの状態遷移が発生したときに信号A−B、B−C、C−Aそれぞれのゼロクロスを検出し、信号A−B、B−C、C−Aのうちの複数においてゼロクロスが検出された場合、最先のゼロクロスに同期してクロック信号を生成するように構成されている。【選択図】図5 |
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AbstractList | PROBLEM TO BE SOLVED: To provide a receiving circuit suitable for communication in the HS mode of MIPI C-PHY.SOLUTION: A receiving circuit 10 includes a differential receiver 13a generating a signal A-B corresponding to the difference of signals A, B, a differential receiver 13b generating a signal B-C corresponding to the difference of signals B, C, a differential receiver 13c generating a signal C-A corresponding to the difference of signals C, A, a clock recovery circuit 14 generating a clock signal in response to zero-cross of the signals A-B, B-C, C-A, and D flip-flops 15a, 15b, 15c for latching the signals A-B, B-C, C-A in synchronism with the clock signal. The clock recovery circuit 14 is configured to detect zero-cross of the signals A-B, B-C, C-A upon occurrence of state transition of the signals A, B, C, and to generate the clock signal in synchronism with the first zero-cross, when zero-cross is detected in the plurality of signals A-B, B-C, C-A.SELECTED DRAWING: Figure 5
【課題】MIPI C−PHYのHSモードでの通信に適した受信回路を提供する。【解決手段】受信回路10は、信号A、Bの差分に対応する信号A−Bを生成する差動レシーバ13aと、信号B、Cの差分に対応する信号B−Cを生成する差動レシーバ13bと、信号C、Aの差分に対応する信号C−Aを生成する差動レシーバ13cと、信号A−B、B−C、C−Aのゼロクロスに応答してクロック信号を生成するクロック再生回路14と、クロック信号に同期して信号A−B、B−C、C−AをラッチするDフリップフロップ15a、15b、15cとを具備する。クロック再生回路14は、信号A、B、Cの状態遷移が発生したときに信号A−B、B−C、C−Aそれぞれのゼロクロスを検出し、信号A−B、B−C、C−Aのうちの複数においてゼロクロスが検出された場合、最先のゼロクロスに同期してクロック信号を生成するように構成されている。【選択図】図5 |
Author | ITOIGAWA KEIICHI |
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DocumentTitleAlternate | 受信回路、表示ドライバ及び表示装置 |
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Snippet | PROBLEM TO BE SOLVED: To provide a receiving circuit suitable for communication in the HS mode of MIPI C-PHY.SOLUTION: A receiving circuit 10 includes a... |
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SubjectTerms | CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION |
Title | RECEIVING CIRCUIT, DISPLAY DRIVER AND DISPLAY DEVICE |
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