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Patent Agency Ranking
公开(公告)号：US09300331B2
公开(公告)日：2016-03-29
申请号：US13673856
申请日：2012-11-09
Applicant: OmniVision Technologies, Inc.
Inventor： Min Liu , Yun Hak Koh , Charles Qingle Wu
CPC classification number: H04B1/04 , G09G5/006 , G09G2310/0289 , G09G2370/08 , H04L25/02 , H04L25/0272 , H04L25/0286 , H04N9/00
Abstract: A transmitter for generating a differential signal pair including a pre-emphasis component. In an embodiment, the transmitter comprises pre-driver circuitry including an input to receive a single-ended data signal. The differential transmitter further comprises a load circuit coupled between the input and a node coupled to an output of the pre-driver circuitry which corresponds to a constituent signal of the differential signal pair. In another embodiment, the load circuit is configurable to provide a signal path between the input and the node. A configuration of the load circuit allows for a type of pre-emphasis to be included in the constituent signal.
Abstract translation: 一种用于产生包括预加重分量的差分信号对的发射机。 在一个实施例中，发射机包括预驱动器电路，其包括用于接收单端数据信号的输入。 差分发射器还包括耦合在输入端和耦合到预驱动器电路的输出端的节点之间的负载电路，其对应于差分信号对的构成信号。 在另一个实施例中，负载电路可配置为在输入和节点之间提供信号路径。 负载电路的配置允许将一种预加重包括在组成信号中。
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公开(公告)号：US09762833B1
公开(公告)日：2017-09-12
申请号：US15163582
申请日：2016-05-24
Applicant: OMNIVISION TECHNOLOGIES, INC.
Inventor： Charles Qingle Wu , Yun Hak Koh
IPC: H04N5/374 , H03K19/00 , H03K19/003
CPC classification number: H04N5/3741 , H03K19/00315 , H04N5/376
Abstract: Techniques and methods for reducing or preventing latch up in row decoder circuits are disclosed herein. An example apparatus may include an array of pixels, a row address decoder, and control circuitry. The row decode circuit including a plurality of decode circuits, each including at least two transistors having respective body terminals coupled to a first node. The control circuitry including a body biasing circuit coupled to the first node, the body biasing circuit to adaptively provide a bias voltage to the first node in response to an operating state of the imaging system and/or a change in one of two reference voltages based on a control signal provided by a bias control circuit.
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公开(公告)号：US10171711B1
公开(公告)日：2019-01-01
申请号：US15872233
申请日：2018-01-16
Applicant: OmniVision Technologies, Inc.
Inventor： Min Liu , Yun Hak Koh , Charles Wu
Abstract: A transmitter circuit coupled to output image data from an image sensor includes a plurality of transmitters. The transmitters may include a plurality of drivers coupled to receive a data signal, and output a differential signal in response to receiving the data signal. A de-emphasis circuit is coupled between a first output of a first driver in the plurality of drivers, and a second output of a second driver in the plurality of drivers. The de-emphasis circuit is coupled to receive a de-emphasis control signal, and in response to receiving the de-emphasis control signal, the de-emphasis circuit reduces a magnitude of the differential signal.
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公开(公告)号：US09608633B1
公开(公告)日：2017-03-28
申请号：US14951307
申请日：2015-11-24
Applicant: OMNIVISION TECHNOLOGIES, INC.
Inventor： Min Liu , Yun Hak Koh , Charles Qingle Wu
IPC: H03K19/0185 , H03K19/00
CPC classification number: H03K19/0013 , H03K19/018514
Abstract: An interface circuit includes a pre-driver that converts the single-ended signal to an intermediate differential signal having a first voltage swing responsive to a first supply voltage supplied to the pre-driver. An output driver is coupled to receive the intermediate differential signal from the pre-driver to convert the intermediate differential signal to an output differential signal coupled to be received by a load coupled to the output driver. The output differential signal has a second voltage swing responsive to a second supply voltage supplied to the output driver. An internal regulator is coupled to receive a variable supply voltage to supply the second voltage to the output driver. The second supply voltage is generated in response to a bias signal. A replica bias circuit is coupled to receive the variable supply voltage to generate the bias signal.
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公开(公告)号：US20140132592A1
公开(公告)日：2014-05-15
申请号：US13673856
申请日：2012-11-09
Applicant: OmniVision Technologies, Inc.
Inventor： Min Liu , Yun Hak Koh , Charles Qingle Wu
CPC classification number: H04B1/04 , G09G5/006 , G09G2310/0289 , G09G2370/08 , H04L25/02 , H04L25/0272 , H04L25/0286 , H04N9/00
Abstract: A transmitter for generating a differential signal pair including a pre-emphasis component. In an embodiment, the transmitter comprises pre-driver circuitry including an input to receive a single-ended data signal. The differential transmitter further comprises a load circuit coupled between the input and a node coupled to an output of the pre-driver circuitry which corresponds to a constituent signal of the differential signal pair. In another embodiment, the load circuit is configurable to provide a signal path between the input and the node. A configuration of the load circuit allows for a type of pre-emphasis to be included in the constituent signal.
Abstract translation: 一种用于产生包括预加重分量的差分信号对的发射机。 在一个实施例中，发射机包括预驱动器电路，其包括用于接收单端数据信号的输入。 差分发射器还包括耦合在输入端和耦合到预驱动器电路的输出端的节点之间的负载电路，其对应于差分信号对的构成信号。 在另一个实施例中，负载电路可配置为在输入和节点之间提供信号路径。 负载电路的配置允许将一种预加重包括在组成信号中。
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