# US 12,225,286 B2 · Low power sensor, processor, and data processing system including the sensor and the processor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,225,286 B2 - Document ID: US12225286B2 - Status: Granted - Kind: B2 - Application number: 17/730,616 - Filed: 2022-04-27 - Published: 2022-11-03 - Granted: 2025-02-11 - Earliest claimed: 2021-04-30 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Sooyong Kim; Dongook Chung; Junho Huh - Web page: https://patentgrep.com/patent/US12225286B2 ## CPC - H04N 23/651: {for reducing power consumption by affecting camera operations, e.g. sleep mode, hibernation mode or power off of selective parts of the camera} - H04N 23/665: {involving internal camera communication with the image sensor, e.g. synchronising or multiplexing SSIS control signals} - G06T 7/20: Analysis of motion (motion estimation for coding, decoding, compressing or decompressing digital video signals H04N19/43, H04N19/51) - H04N 23/45: for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images - H04N 23/611: where the recognised objects include parts of the human body - H04N 23/65: Control of camera operation in relation to power supply - H04N 23/667: Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes - H04N 23/6811: {based on the image signal} - G06T 2207/30201: Face - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## Abstract A sensor includes a control circuit set to a first operation mode in which an operation is prepared by receiving a clock signal from a processor and receiving an operation command from the processor. The sensor is configured to generate a first signal including a result of an operation corresponding to the operation command and a second signal indicating completion of the operation. An interface circuit is configured to transmit the first signal and the second signal to the processor. The control circuit is set to a second operation mode due to blocking of the clock signal by a control of the processor in response to the transmission of the second signal. ## Claims ### Claim 1 A sensor comprising: a processor; a control circuit configured to be set to a first operation mode in which an operation is prepared by receiving a clock signal and an operation command from the processor, wherein the control circuit is configured to generate a first signal including a result of an operation corresponding to the operation command, and a second signal indicating completion of the operation; and an interface circuit configured to transmit the first signal and the second signal to the processor, wherein the control circuit is further configured to be set to a second operation mode due to not receiving the clock signal, which is discontinued by control of the processor in response to a transmission of the second signal and wherein, after receipt of the second signal, the processor is configured to evaluate, based on the first signal, whether a motion of an object has been detected. ### Claim 2 (depends on 1) The sensor of claim 1, wherein: the interface circuit receives a motion detection command from the processor, and the control circuit, in response to the motion detection command, generates first status information indicating whether the motion detection operation is completed. ### Claim 3 (depends on 2) The sensor of claim 2, wherein the interface circuit: transmits the second signal to the processor, and transmits the first status information to the processor in response to a request of the processor, after transmission of the second signal. ### Claim 4 (depends on 2) The sensor of claim 2, wherein the interface circuit further comprises a face detection circuit that: when the motion of the object has been detected, receives a face detection command from the processor, and in response to the face detection command, detects a face of the object and generates second status information indicating whether the face has been detected. ### Claim 5 (depends on 4) The sensor of claim 4, wherein the interface circuit: transmits the second signal to the processor, and transmits the second status information to the processor in response to a request of the processor, after transmission of the second signal. ### Claim 6 (depends on 2) The sensor of claim 2, wherein: when the motion of the object has been detected, the interface circuit receives a face detection command from the processor, and the control circuit generates image data of the object in response to the face detection command. ### Claim 7 (depends on 1) The sensor of claim 1, wherein the interface circuit comprises: a first interface circuit configured to transmit the first signal to the processor; and a second interface circuit configured to transmit the second signal to the processor. ### Claim 8 (depends on 7) The sensor of claim 7, wherein the second signal comprises an interrupt signal. ### Claim 9 (depends on 7) The sensor of claim 7, wherein the second interface circuit comprises a general-purpose input/output (GPIO) pin. ### Claim 10 (depends on 1) The sensor of claim 1, wherein the control circuit is set to the first operation mode in response to receiving a power signal and the clock signal and is set to a third operation mode in response to not receiving the power signal and the clock signal. ### Claim 11 (depends on 1) The sensor of claim 1, wherein the sensor comprises an image sensor configured to generate image data based on an optical signal incident from outside.