# US 2021/0243688 A1 · Communication apparatus, communication method, and program > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0243688 A1 - Document ID: US20210243688A1 - Status: Published application - Kind: A1 - Application number: 17/238,365 - Filed: 2021-04-23 - Published: 2021-08-05 - Earliest claimed: 2014-05-08 - Assignees: Sony Group Corporation - Applicants: Sony Group Corporation - Inventors: Tatsuo NAGAMATSU - Web page: https://patentgrep.com/patent/US20210243688A1 ## CPC - H04W 52/02: Power saving arrangements - H04N 21/41407: {embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop (constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57)} - H04N 21/42684: {Client identification by a unique number or address, e.g. serial number, MAC address, socket ID (network arrangements, protocols or services for addressing or naming H04L61/00)} - H04N 21/43637: {involving a wireless protocol, e.g. Bluetooth®, RF or wireless LAN [IEEE 802.11] (arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114)} - H04N 21/44227: {Monitoring of local network, e.g. connection or bandwidth variations; Detecting new devices in the local network (configuring of peripheral devices in general G06F9/4411; monitoring connectivity in data switched networks H04L43/0811)} - H04N 21/4436: {Power management, e.g. shutting down unused components of the receiver (power management in computer systems G06F1/3203; hibernate or awake process in computer systems G06F9/4418)} - H04N 21/8106: {involving special audio data, e.g. different tracks for different languages} - H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication - H04W 52/0229: {where the received signal is a wanted signal} - H04W 52/028: {switching on or off only a part of the equipment circuit blocks} - 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 - H04W 52/0254: {detecting a user operation or a tactile contact or a motion of the device} - H04W 88/08: Access point devices - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract [Object] To provide a communication apparatus, a communication method, and a program, each of which is capable of flexibly controlling operation of the communication apparatus in accordance with a change in communication environment while reducing power consumption. [Solution] A communication apparatus includes: a control module configured to control operation of the communication apparatus; and a communication module configured to determine whether or not information obtained by reception from another communication apparatus has been changed and control state transition of the control module in a case where it is determined that the information obtained by the reception has been changed. ## Claims ### Claim 1 (canceled) ### Claim 2 A communication apparatus comprising: circuitry configured to implement: a control module configured to control operation of the communication apparatus; and a communication module configured to determine whether or not reception strength information of another communication apparatus has been changed; and control state transition of the control module in a case where it is determined that the reception strength information has been changed. ### Claim 3 (depends on 2) The communication apparatus according to claim 2, wherein control of the state transition of the control module includes transition of a state of the control module to an active state. ### Claim 4 (depends on 3) The communication apparatus according to claim 3, wherein the control of the state transition of the control module includes transition of the state of the control module from a sleep state to the active stale. ### Claim 5 (depends on 3) The communication apparatus of claim 3, wherein the communication module is configured to determine whether the reception strength information has been changed over a threshold, and wherein in response to a determination that the reception strength information has been changed over the threshold, the communication module is configured to inform the control module of information indicating that the reception strength information has been changed, and the state of the control module is transitioned to the active state. ### Claim 6 (depends on 2) The communication apparatus of claim 2, wherein the communication module is configured to receive existence information from the another communication apparatus; determine whether the existence information contains identification information; and in response to a determination that the existence information does not contain the identification information, add the identification information to the existence information, detect a reception strength of the existence information, and store the detected reception strength in the reception strength information associated with the identification information. ### Claim 7 (depends on 6) The communication apparatus of claim 6, wherein the communication module is configured to determine whether the detected reception strength is equal to or larger than a threshold; and in response to a determination that the detected reception strength is not equal to or larger than the threshold, not perform information notification with respect to the control module. ### Claim 8 (depends on 2) The communication apparatus of claim 2, wherein the communication module is configured to determine whether the reception strength information has been changed from a value less than a threshold to a value equal to or larger than the threshold; and in response to a determination that the reception strength information has been changed from the value less than the threshold to the value equal to or larger than the threshold, notify the control module of information indicating that the reception strength information has been changed. ### Claim 9 (depends on 2) The communication apparatus of claim 2, wherein the communication module is configured to determine whether the reception strength information has been changed from a value less than a threshold to a value equal to or larger than the threshold; and in response to a determination that the reception strength information has not been changed from the value less than the threshold to the value equal to or larger than the threshold, not notify the control module of information indicating that the reception strength information has been changed, and update the reception strength information to the changed reception strength information. ### Claim 10 (depends on 2) The communication apparatus of claim 2, wherein the communication module is configured to determine whether the reception strength information has been changed from a value equal to or larger than a threshold to a value less than the threshold; and in response to a determination that the reception strength information has been changed from the value equal to or larger than the threshold to the value less than the threshold, notify the control module of information indicating that the reception strength information has been changed. ### Claim 11 A method performed using circuitry of a communication apparatus, the method comprising: controlling the circuitry to implement a control module configured to control operation of the communication apparatus; and controlling the circuitry to implement a communication module configured to determine whether or not reception strength information of another communication apparatus has been changed and control state transition of the control module in a case where it is determined that the reception strength information has been changed. ### Claim 12 A non-transitory, computer-readable medium storing instructions that, when executed in circuitry of a communication apparatus, control the circuitry to carry out a method comprising: implementing a control module configured to control operation of the communication apparatus; and implementing a communication module configured to determine whether or not reception strength information of another communication apparatus has been changed and control state transition of the control module in a case where it is determined that the reception strength information has been changed.