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公开(公告)号：US20210337117A1
公开(公告)日：2021-10-28
申请号：US17109009
申请日：2020-12-01
发明人： Songhe CAI , Scott CHENG , Rohan DESAI , Jiafu LUO , Krishnam INDUKURI , Abhay RAUT , Rakesh SANAM , Chia-Yuan TENG , Chinchuan CHIU
IPC分类号： H04N5/232
摘要： Techniques and systems are provided for processing image data. For example, an image signal processor can obtain (e.g., from a host processor) a first setting change indicator value indicating a change in parameter settings of the image signal processor. The image signal processor can obtain an image frame from an image sensor, and can determine a second setting change indicator value from the image frame. The second setting change indicator value can be provided to the image sensor from the host processor. The second setting change indicator value indicates a change in parameter settings of the image sensor. The image signal processor can compare the first setting change indicator value to the second setting change indicator value, and can determine whether to process the image frame or to drop the image frame based on comparing the first setting change indicator value to the second setting change indicator value.
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公开(公告)号：US20220060619A1
公开(公告)日：2022-02-24
申请号：US17158917
申请日：2021-01-26
发明人： Eran PINHASOV , Scott CHENG , Eran SCHARAM , Anatoly GUREVICH
摘要： Examples are described for applying different settings for image capture to different portions of image data. For example, an image sensor can capture image data of a scene and can send the image data to an image signal processor (ISP) and a classification engine for processing. The classification engine can determine that a first object image region depicts a first category of object, and a second object image region depicts a second category of object. Different confidence regions of the image data can identify different degrees of confidence in the classifications. The ISP can generate an image by applying a different settings to the different portions of the image data. The different portions of the image data can be identified based on the object image regions and confidence regions.
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公开(公告)号：US20190132513A1
公开(公告)日：2019-05-02
申请号：US15794673
申请日：2017-10-26
发明人： Aravind BHASKARA , Wenbiao WANG , Tao SHEN , Mohit BHAVE , Nishant HARIHARAN , Jun LIU , Jeffrey Hao CHU , Scott CHENG
摘要： Methods and apparatus to manage image signal processor (ISP) data traffic is provided. The apparatus includes an ISP having an ISP front-end configured to receive image data and a first memory configured to store the image data. The ISP front-end is further configured to output the image data stored in the first memory to a second memory via a memory link in response to the image data stored in the first memory reaching a size threshold. Another apparatus includes apparatus includes a camera sensor configured to output image data in a camera mode, an ISP on a die, a camera link coupling the camera sensor and the ISP, a memory, and a memory link coupling the ISP and the memory. The memory link is configured to enter a low-power mode in the camera mode.
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公开(公告)号：US20170222684A1
公开(公告)日：2017-08-03
申请号：US15420324
申请日：2017-01-31
发明人： Raheel KHAN , Scott CHENG , Pascal PHILIPPE , Joaquin ROMERA
IPC分类号： H04B1/40 , H04B17/318
CPC分类号： H04B1/40 , H04B17/318 , H04L69/323 , H04L69/324
摘要： Transmission of data over a serial link based on a unidirectional clock signal is provided. A unidirectional clock signal is generated based on a first clock of a master device. The unidirectional clock signal is sent to a slave device that is connected to the serial link. The master device transmits data to the slave device over the serial link based on the first clock. The slave device receives the unidirectional clock signal from a master device. The slave device transmits data over the serial link to the master device based on the unidirectional clock signal.
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公开(公告)号：US20210360153A1
公开(公告)日：2021-11-18
申请号：US15931770
申请日：2020-05-14
发明人： Rohan DESAI , Scott CHENG , Songhe CAI , Rakesh SANAM , Abhay RAUT , Michael Lee COULTER
IPC分类号： H04N5/232
摘要： Aspects relate to an image signal processor that processes frames at changing frame rates. An example method includes receiving, by an image signal processor, a first sequence of image frames from an image sensor at a first frame rate, processing each image frame of the first sequence of image frames at the first frame rate, and receiving from the image sensor an indication of a frame rate change from the first frame rate to a second frame rate. The method also includes configuring one or more filters of the image signal processor to process image frames from the image sensor in response to receiving the indication of the frame rate change from the image sensor, receiving a second sequence of image frames from the image sensor at the second frame rate, and processing each image frame of the second sequence of image frames at the second frame rate.
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公开(公告)号：US20170222686A1
公开(公告)日：2017-08-03
申请号：US15420670
申请日：2017-01-31
发明人： Raheel KHAN , Scott CHENG , Pascal PHILIPPE , Joaquin ROMERA
CPC分类号： H04B1/40 , H04B17/318 , H04L69/323 , H04L69/324
摘要： Serial communication using a packetization protocol engineered for efficient transmission is provided. Data link layer (DLL) control packets can be generated for transmission of control messages. Each DLL control message packet can have a DLL control packet length, and the DLL control packet length can be a fixed length. Physical layer (PHY) control packets can be generated. Each PHY control packet can include one of the DLL control packets and a control token. The length of each PHY control packet can be the sum of the DLL control packet length and a control token length of the control token. The PHY control packets can be encapsulated in frames. Each of the frames can include a synchronization symbol having a symbol length. The length of each frame can be the sum of the symbol length and an encapsulation length, which can be twice the length of the PHY control packet.
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公开(公告)号：US20170220517A1
公开(公告)日：2017-08-03
申请号：US15422263
申请日：2017-02-01
发明人： Raheel KHAN , Scott CHENG , Pascal PHILIPPE , Joaquin ROMERA
IPC分类号： G06F13/42 , G06F13/364
摘要： Transmission of data over a serial link based on a unidirectional clock signal is provided. A unidirectional clock signal is generated based on a first clock of a master device. The unidirectional clock signal is sent to a slave device that is connected to the serial link. The master device transmits data to the slave device over the serial link based on the first clock. The slave device receives the unidirectional clock signal from a master device. The slave device transmits data over the serial link to the master device based on the unidirectional clock signal.
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公开(公告)号：US20240121521A1
公开(公告)日：2024-04-11
申请号：US18545799
申请日：2023-12-19
发明人： Eran PINHASOV , Scott CHENG , Eran SCHARAM , Anatoly GUREVICH
IPC分类号： H04N23/80 , G06V10/10 , G06V20/00 , G06V20/10 , H04N1/60 , H04N23/61 , H04N23/66 , H04N23/70
CPC分类号： H04N23/80 , G06V10/10 , G06V20/10 , G06V20/35 , H04N1/6072 , H04N1/6083 , H04N23/61 , H04N23/66 , H04N23/70 , H04N2101/00
摘要： Examples are described for applying different settings for image capture to different portions of image data. For example, an image sensor can capture image data of a scene and can send the image data to an image signal processor (ISP) and a classification engine for processing. The classification engine can determine that a first object image region depicts a first category of object, and a second object image region depicts a second category of object. Different confidence regions of the image data can identify different degrees of confidence in the classifications. The ISP can generate an image by applying a different settings to the different portions of the image data. The different portions of the image data can be identified based on the object image regions and confidence regions.
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公开(公告)号：US20210321030A1
公开(公告)日：2021-10-14
申请号：US16844515
申请日：2020-04-09
发明人： Rohan DESAI , Scott CHENG , Edoardo REGINI
摘要： Systems, methods, and non-transitory media are provided for reducing resource and power usage and requirements in staggered high dynamic range (HDR) applications. For example, a first exposure including a set of image data associated with a frame can be stored in memory. The first exposure has a first exposure time and is captured by an image sensor during a first time period associated with the frame. The first exposure can be obtained from the memory, and a second exposure including a set of image data associated with the frame can be obtained from a cache or the image sensor. The second exposure has a second exposure time and is captured by the image sensor during a second time period associated with the frame. The sets of image data from the first and second exposures can be merged, and an HDR image generated based on the sets of image data merged.
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公开(公告)号：US20170222685A1
公开(公告)日：2017-08-03
申请号：US15420520
申请日：2017-01-31
发明人： Raheel KHAN , Scott CHENG , Pascal PHILIPPE , Graig ZETHNER , Vaidyanathan SEETHARAMAN , Kanwal Preet S. BANGA , Srinivas BADAM
CPC分类号： H04B1/40 , H04B17/318 , H04L69/323 , H04L69/324
摘要： A serial transceiver that includes programmable distributed data processing is provided. The serial transceiver can include an ingress channel that receives serial ingress data and an egress channel that transmits serial egress data. The serial transceiver can also include first and second layers that are one and another of a transport layer, a link layer, or a physical layer (PHY). The first and second layers can include elements that process the ingress data and the egress data. The serial transceiver can also include a programmable controller, a first interconnect that connects the programmable controller to the first layer, and a second interconnect that connects the programmable controller to the second layer. The programmable controller can send first data via the first interconnect to the first layer, and the first data can be processed by one of the first layer elements.
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