# US 11,122,398 B2 · Systems, methods, and devices for utilizing radar-based touch interfaces > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,122,398 B2 - Document ID: US11122398B2 - Status: Granted - Kind: B2 - Application number: 16/897,095 - Filed: 2020-06-09 - Published: 2020-09-24 - Granted: 2021-09-14 - Earliest claimed: 2016-05-13 - Assignees: Google Inc. - Applicants: Google LLC - Inventors: Brian Silverstein; Eden Sherry - Web page: https://patentgrep.com/patent/US11122398B2 ## CPC - G05B 15/02: electric - H04W 4/33: for indoor environments, e.g. buildings - G01S 7/006: {using shared front-end circuitry, e.g. antennas (G01S13/765, G01S13/825 take precedence)} - G01S 13/42: Simultaneous measurement of distance and other co-ordinates (indirect measurement G01S13/46) - G01S 13/56: for presence detection {(presence detection using near field arrangements G01V3/00, e.g. G01V3/08, G01V3/12; burglar, theft or intruder alarms with electrical actuation G08B13/22 - G08B13/26)} - G01S 13/58: Velocity or trajectory determination systems; Sense-of-movement determination systems - G01S 13/86: Combinations of radar systems with non-radar systems, e.g. sonar, direction finder - G01S 13/878: {Combination of several spaced transmitters or receivers of known location for determining the position of a transponder or a reflector (G01S13/874 takes precedence)} - G01S 13/88: Radar or analogous systems specially adapted for specific applications (electromagnetic prospecting or detecting of objects, e.g. near-field detection, G01V3/00) - H04W 4/029: Location-based management or tracking services - H04W 8/005: {Discovery of network devices, e.g. terminals} - G05B 2219/2642: Domotique, domestic, home control, automation, smart house - G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES ## Abstract An electronic device is located in a room. The device has a casing, a first processor coupled to a radar transceiver, a second processor coupled to a motion sensor, and memory. Using the second processor, the device determines using signals from the motion sensor whether an object is in proximity. In accordance with a determination that the object is in proximity, the device wakes up the first processor. Using the first processor, the device enables operation of the radar transceiver. It determines using signals from the radar transceiver whether the object is in contact with the casing. In accordance with a determination that the object is in contact with the casing, the device identifies an input command based on at least one of: a location of the object, and a movement of the object, and adjusts operation based on the input command. ## Claims ### Claim 1 A method performed at an electronic device located in a room, the electronic device having a casing, a first processor coupled to a radar transceiver, a second processor coupled to a motion sensor, and memory, the method comprising: using the second processor: determining using signals from the motion sensor that an object is in proximity to the electronic device; and in accordance with determining that the object is in proximity to the electronic device, waking up the first processor; and using the first processor: enabling operation of the radar transceiver; receiving a set of signals associated with the operation of the radar transceiver, the set of signals indicating an amount of jitter of the object; determining that the object is in contact with the casing when the amount of jitter indicated in the set of signals is below a predetermined threshold; in accordance with determining that the object is in contact with the casing, identifying an input command based on at least one of: a location of the object, and a movement of the object; and adjusting operation of the electronic device based on the input command. ### Claim 2 (depends on 1) The method of claim 1, wherein the motion sensor is distinct from the radar transceiver. ### Claim 3 (depends on 1) The method of claim 1, wherein the motion sensor is the radar transceiver. ### Claim 4 (depends on 3) The method of claim 3, wherein: determining using the signals from the motion sensor that the object is in proximity to the electronic device comprises utilizing a first gain for the radio transceiver; and determining that the object is in contact with the casing comprises utilizing a second gain for the radio transceiver, lower than the first gain. ### Claim 5 (depends on 3) The method of claim 3, wherein determining using the signals from the motion sensor that the object is in proximity to the electronic device comprises: transmitting one or more radio signals via the radar transceiver; receiving one or more radio signals corresponding to the one or more transmitted radio signals; and determining that the object is within a particular proximity radius to the electronic device by analyzing the one or more received radio signals. ### Claim 6 (depends on 1) The method of claim 1, further comprising: prior to using the second processor: placing the first processor in a sleep state; and operating the second processor continuously. ### Claim 7 (depends on 1) The method of claim 1, wherein the operations using the second processor are repeated continuously. ### Claim 8 An electronic device comprising: a casing; a first processor coupled to a radar transceiver; a second processor coupled to a motion sensor; and memory coupled to the first and second processors, the memory storing one or more programs configured to be executed by the first and second processors, the one or more programs including instructions for: using the second processor: determining using signals from the motion sensor that an object is in proximity to the electronic device; and in accordance with determining that the object is in proximity to the electronic device, waking up the first processor; and using the first processor: enabling operation of the radar transceiver; receiving a set of signals associated with the operation of the radar transceiver, the set of signals indicating an amount of jitter of the object; determining that the object is in contact with the casing when the amount of jitter indicated in the set of signals is below a predetermined threshold; in accordance with determining that the object is in contact with the casing, identifying an input command based on at least one of: a location of the object, and a movement of the object; and adjusting operation of the electronic device based on the input command. ### Claim 9 (depends on 8) The electronic device of claim 8, wherein the motion sensor is distinct from the radar transceiver. ### Claim 10 (depends on 8) The electronic device of claim 8, wherein the motion sensor is the radar transceiver. ### Claim 11 (depends on 8) The electronic device of claim 8, wherein the instructions for determining using the signals from the motion sensor that object is in proximity to the electronic device comprise instructions for receiving the signals from a second electronic device, distinct from the electronic device. ### Claim 12 (depends on 8) The electronic device of claim 8, wherein: the electronic device comprises a smart thermometer; and the instructions for adjusting operation of the electronic device based on the input command comprise instructions for adjusting a desired room temperature target. ### Claim 13 A non-transitory computer-readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by an electronic device located in a room, the electronic device having a casing, a first processor coupled to a radar transceiver, a second processor coupled to a motion sensor, and memory, cause the electronic device to perform operations comprising: using the second processor: determining using signals from the motion sensor that an object is in proximity to the electronic device; and in accordance with determining that the object is in proximity to the electronic device, waking up the first processor; and using the first processor: enabling operation of the radar transceiver; receiving a set of signals associated with the operation of the radar transceiver, the set of signals indicating an amount of jitter of the object; determining that the object is in contact with the casing when the amount of jitter indicated in the set of signals is below a predetermined threshold; in accordance with determining that the object is in contact with the casing, identifying an input command based on at least one of: a location of the object, and a movement of the object; and adjusting operation of the electronic device based on the input command. ### Claim 14 (depends on 13) The non-transitory computer-readable storage medium of claim 13, the operations further comprising: prior to using the second processor: placing the first processor in a sleep state; and operating the second processor continuously. ### Claim 15 (depends on 13) The non-transitory computer-readable storage medium of claim 13, wherein the operations using the second processor are repeated continuously. ### Claim 16 (depends on 13) The non-transitory computer-readable storage medium of claim 13, wherein determining using signals from the motion sensor that the object is in proximity to the electronic device comprises receiving the signals from a second electronic device, distinct from the electronic device.