# US 11,115,587 B2 · Recording reproduction apparatus, recording reproduction 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 11,115,587 B2 - Document ID: US11115587B2 - Status: Granted - Kind: B2 - Application number: 16/861,632 - Filed: 2020-04-29 - Published: 2020-08-13 - Granted: 2021-09-07 - Earliest claimed: 2018-06-06 - Assignees: JVCKENWOOD Corporation - Applicants: Jvckenwood Corporation - Inventors: Keita Hayashi; Toshitaka Murata - Web page: https://patentgrep.com/patent/US11115587B2 ## CPC - G07C 5/0866: {the electronic data carrier being a digital video recorder in combination with video camera} - H04N 23/611: where the recognised objects include parts of the human body - G06V 20/56: exterior to a vehicle by using sensors mounted on the vehicle - G06V 40/161: {Detection; Localisation; Normalisation} - G06V 40/165: {using facial parts and geometric relationships} - G06V 40/166: {using acquisition arrangements} - G06V 40/18: Eye characteristics, e.g. of the iris - H04N 5/77: between a recording apparatus and a television camera - H04N 23/90: Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums - G07C: TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING ## Abstract A recording reproduction apparatus includes: a captured data acquisition unit configured to acquire first captured data captured by a first camera that captures an image of an outside of a moving body and second captured data captured by a second camera that captures an image in a direction opposed to a display surface of a display unit; an event detection unit configured to detect an event on the moving body; a recording controller configured to store, when an event has been detected, the first captured data as event recording data; a face detection unit configured to detect a human face from the second captured data; a reproduction controller configured to reproduce the event recording data when a human face has been detected within a period after storage of the event recording data; and a display controller configured to cause the display unit to display the reproduced event recording data. ## Claims ### Claim 1 A recording reproduction apparatus comprising: a captured data acquisition unit configured to acquire first captured data captured by a first camera that captures an image of an outside of a moving body and second captured data captured by a second camera that captures an image in a direction that is opposed to a display surface of a display unit; an event detection unit configured to detect an event on the moving body; a recording controller configured to store, when the event detection unit has detected an event, the first captured data including at least data at a timing when the event has occurred as event recording data; a face detection unit configured to detect a human face from the second captured data; a reproduction controller configured to reproduce the event recording data when the face detection unit has detected a human face within a predetermined period after the storage of the event recording data; and a display controller configured to cause the display unit to display the event recording data reproduced by the reproduction controller. ### Claim 2 (depends on 1) The recording reproduction apparatus according to claim 1, wherein the face detection unit detects whether the detected human face has come close to the display surface of the display unit, and the reproduction controller reproduces the event recording data when the face detection unit has determined that a human face has come close to the display surface of the display unit within a predetermined period after the storage of the event recording data. ### Claim 3 (depends on 1) The recording reproduction apparatus according to claim 1, wherein the face detection unit further detects an opening degree of an eye in the detected human face, and the reproduction controller reproduces the event recording data when the face detection unit has detected a face whose opening degree of the eye is equal to or larger than a predetermined degree within a predetermined period after the storage of the event recording data. ### Claim 4 (depends on 1) The recording reproduction apparatus according to claim 1, wherein the face detection unit further detects a line of sight in the detected human face, and the reproduction controller reproduces the event recording data when it is detected that the line of sight has been directed to the display surface of the display unit within a predetermined period after the storage of the event recording data. ### Claim 5 (depends on 1) The recording reproduction apparatus according to claim 1, wherein the face detection unit detects a human face registered in advance, and the reproduction controller reproduces the event recording data when the face detection unit has detected a human face registered in advance within a predetermined period after the storage of the event recording data. ### Claim 6 (depends on 5) The recording reproduction apparatus according to claim 5, wherein the reproduction controller reproduces the event recording data when the face detection unit has detected a plurality of faces including a human face registered in advance within a predetermined period after the storage of the event recording data. ### Claim 7 (depends on 1) The recording reproduction apparatus according to claim 1, wherein the captured data acquisition unit acquires the second captured data captured by the second camera when the event detection unit has detected an event. ### Claim 8 A recording reproduction method comprising: a first captured data acquisition step for acquiring first captured data captured by a first camera that captures an image of an outside of a moving body; an event detection step for detecting an event on the moving body; a recording step for storing, when an event has been detected, the first captured data including at least data at a timing when the event has occurred as event recording data; a second captured data acquisition step for acquiring second captured data captured by a second camera that captures an image in a direction that is opposed to a display surface of a display unit; a face detection step for detecting a human face from the second captured data; a reproduction step for reproducing the event recording data when the human face has been detected within a predetermined period after the storage of the event recording data in the recording step; and a display step for causing the display unit to display the event recording data reproduced in the reproduction step. ### Claim 9 A non-transitory computer readable medium storing a program for causing a computer operating as a recording reproduction apparatus to execute the following steps: a first captured data acquisition step for acquiring first captured data captured by a first camera that captures an image of an outside of a moving body; an event detection step for detecting an event on the moving body; a recording step for storing, when an event has been detected, the first captured data including at least data at a timing when the event has occurred as event recording data; a second captured data acquisition step for acquiring second captured data captured by a second camera that captures an image in a direction that is opposed to a display surface of a display unit; a face detection step for detecting a human face from the second captured data; a reproduction step for reproducing the event recording data when the human face has been detected within a predetermined period after the storage of the event recording data in the recording step; and a display step for causing the display unit to display the event recording data reproduced in the reproduction step.