公开(公告)号：US20190320102A1

公开(公告)日：2019-10-17

申请号：US15952936

申请日：2018-04-13

Applicant: QUALCOMM Incorporated

Inventor： Tanvi Aggarwal ,  Vijay Kumar Tumati ,  Ajay Kumar Dhiman

IPC: H04N5/225 ,  H04N5/232 ,  H04N5/262

Abstract: Methods and apparatuses are disclosed for reducing power consumption in image processing systems comprising a master image sensor and a slave image sensor synchronized to the master image sensor. For example, a synchronization signal may be periodically sent from the master image sensor to the slave image sensor, where the synchronization signal is sent once per synchronization period and indicates a frame start time. A time may be estimated to complete an image processing operation. A comparison may be made between the estimated time and the synchronization period, and a frame capture rate of the slave image sensor may be selectively adjusted based at least in part on the comparison.

公开(公告)号：US20180213150A1

公开(公告)日：2018-07-26

申请号：US15414030

申请日：2017-01-24

Applicant: QUALCOMM Incorporated

Inventor： Gaurav Gagrani ,  Ajay Kumar Dhiman ,  Atishay Tibrewal ,  Ajay Kumar

IPC: H04N5/232 ,  H04N5/907

CPC classification number: H04N5/23232 ,  H04N5/232 ,  H04N5/23222 ,  H04N5/23245 ,  H04N5/23293 ,  H04N5/772 ,  H04N5/907

Abstract: An example device includes camera hardware, processing circuitry, and a memory device implementing a buffer. The processing circuitry is configured to store a first subset of frames received by the camera hardware to a buffer, according to a first buffering rate, to determine scene-change information associated with at least one of the received frames, and to determine a second buffering rate, based on the determined scene-change information. The processing circuitry is further configured to store a second subset of the received frames to the buffer according to the second buffering rate, the second plurality of received frames including different pictures from the pictures of the first plurality of received frames.

公开(公告)号：US10277816B2

公开(公告)日：2019-04-30

申请号：US15596330

申请日：2017-05-16

Applicant: QUALCOMM Incorporated

Inventor： Ravi Shankar Kadambala ,  Ajay Kumar Dhiman ,  Gaurav Gagrani ,  Ravi Kishore Tanuku ,  Jeyaprakash Soundrapandian

IPC: H04N5/232 ,  G02B7/09 ,  H04W4/80 ,  G01S5/16 ,  H04B10/116 ,  H04W64/00 ,  H04W72/00 ,  G01C21/20 ,  G03B3/10 ,  G06F1/3287 ,  H04B10/60 ,  H04W52/02 ,  G01S5/02 ,  H04W4/04 ,  H04W48/10 ,  G01S1/70 ,  G02B7/10 ,  G03B13/34

Abstract: One innovation includes an imaging device having an image sensor, a lens having a movable optical element, and an actuator operative to move the one optical element to a plurality of lens positions. The imaging device further includes an electronic display, a power source electrically coupled to the camera system and to the display, the power source (e.g., voltage regulator) configured to provide power to the display and the camera system, a memory circuit configured to store information representing an actuator control value that corresponds to a low-power focus position, and an electronic hardware processor coupled to the memory circuit, the actuator and the electronic display. The processor may retrieve the actuator control value from the memory circuit and controls the actuator to move the optical element to the lens position that corresponds to the low-power focus position when the camera system is in a deactivated state.

公开(公告)号：US20180091737A1

公开(公告)日：2018-03-29

申请号：US15596330

申请日：2017-05-16

Applicant: QUALCOMM Incorporated

Inventor： Ravi Shankar Kadambala ,  Ajay Kumar Dhiman ,  Gaurav Gagrani ,  Ravi Kishore Tanuku ,  Jeyaprakash Soundrapandian

IPC: H04N5/232 ,  G02B7/09

CPC classification number: H04N5/23241 ,  G01C21/206 ,  G01S1/70 ,  G01S5/0263 ,  G01S5/16 ,  G01S5/163 ,  G02B7/09 ,  G02B7/10 ,  G03B3/10 ,  G03B13/34 ,  G03B2217/007 ,  G06F1/3287 ,  H04B10/116 ,  H04N5/23212 ,  H04N5/23245 ,  H04N5/23293 ,  H04W4/043 ,  H04W4/80 ,  H04W48/10 ,  H04W52/0254 ,  H04W52/029 ,  H04W64/003 ,  H04W72/005 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/46

Abstract: One innovation includes an imaging device having an image sensor, a lens having a movable optical element, and an actuator operative to move the one optical element to a plurality of lens positions. The imaging device further includes an electronic display, a power source electrically coupled to the camera system and to the display, the power source (e.g., voltage regulator) configured to provide power to the display and the camera system, a memory circuit configured to store information representing an actuator control value that corresponds to a low-power focus position, and an electronic hardware processor coupled to the memory circuit, the actuator and the electronic display. The processor may retrieve the actuator control value from the memory circuit and controls the actuator to move the optical element to the lens position that corresponds to the low-power focus position when the camera system is in a deactivated state.

公开(公告)号：US20180088208A1

公开(公告)日：2018-03-29

申请号：US15670323

申请日：2017-08-07

Applicant: QUALCOMM Incorporated

Inventor： Gaurav Gagrani ,  Ajay Kumar Dhiman

IPC: G01S5/16 ,  H04W4/00 ,  H04W72/00 ,  H04W64/00 ,  H04B10/116

CPC classification number: H04N5/23241 ,  G01C21/206 ,  G01S1/70 ,  G01S5/0263 ,  G01S5/16 ,  G01S5/163 ,  G02B7/09 ,  G02B7/10 ,  G03B3/10 ,  G03B13/34 ,  G03B2217/007 ,  G06F1/3206 ,  G06F1/3287 ,  H04B10/116 ,  H04B10/60 ,  H04N5/23212 ,  H04N5/23245 ,  H04N5/23293 ,  H04W4/33 ,  H04W4/80 ,  H04W48/10 ,  H04W52/0254 ,  H04W52/029 ,  H04W64/003 ,  H04W72/005 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/46

Abstract: Embodiments of systems and methods of power optimization in VLC positioning are disclosed. In one embodiment, a method of power optimization in visible light communication (VLC) positioning of a mobile device comprises receiving, by a transceiver, positioning assistance data of a venue, where the positioning assistance data includes identifiers and positions of light fixtures in the venue, decoding, by a VLC signal decoder, one or more light fixtures within a field of view of the mobile device to obtain corresponding light fixture identifiers, determining, by a controller, a motion of the mobile device with respect to the one or more light fixtures based on the light fixture identifiers and the positioning assistance data of the venue, and controlling, by the controller, the mobile device to operate in a reduced power mode based on the motion of the mobile device with respect to the one or more light fixtures.