# US 2019/0244584 A1 · Playback device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0244584 A1 - Document ID: US20190244584A1 - Status: Published application - Kind: A1 - Application number: 16/266,524 - Filed: 2019-02-04 - Published: 2019-08-08 - Earliest claimed: 2018-02-06 - Assignees: Funai Electric Co., Ltd. - Applicants: Funai Electric Co., Ltd. - Inventors: Yoshikazu FUJITA; Mitsuru KAWAKITA; Takuya SUZUKI; Shigeru TOJI; Makoto IMAGAWA; Sho MAGARA; Tatsuo MIYAGAWA; Yosuke SONODA - Web page: https://patentgrep.com/patent/US20190244584A1 ## CPC - G09G 5/04: using circuits for interfacing with colour displays - G09G 5/026: {Control of mixing and/or overlay of colours in general (G09G5/022 and G09G5/024 take precedence)} - G09G 5/10: Intensity circuits - H04N 21/43635: {HDMI} - G09G 2320/0242: Compensation of deficiencies in the appearance of colours - G09G 2320/0626: for control of overall brightness - G09G 2370/042: for monitor identification - H04N 21/4854: {for modifying image parameters, e.g. image brightness, contrast} - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A playback device is configured to be connected to a display device. The playback device includes a communication component and a controller. The communication component communicates with the display device. The controller acquires setting information indicating a current setting of a brightness range in the display device from the display device via the communication component. While a specific brightness range has not been set in the display device, the controller transmits information related to a setting change to the specific brightness range via the communication component to the display device based on correspondence information indicating a correspondence relationship between the display device and the brightness range that is settable in the display device. ## Claims ### Claim 1 A playback device configured to be connected to a display device, the playback device comprising: a communication component that communicates with the display device; and a controller that acquires setting information indicating a current setting of a brightness range in the display device from the display device via the communication component, while a specific brightness range has not been set in the display device, the controller transmitting information related to a setting change to the specific brightness range via the communication component to the display device based on correspondence information indicating a correspondence relationship between the display device and the brightness range that is settable in the display device. ### Claim 2 (depends on 1) The playback device according to claim 1, further comprising a storage component that stores the correspondence information in advance. ### Claim 3 (depends on 2) The playback device according to claim 2, further comprising a receiver that receives update information for updating the correspondence information from an external device that is configured to be connected to the playback device via a network and is configured to hold the update information, the controller updating the correspondence information based on the received update information. ### Claim 4 (depends on 1) The playback device according to claim 1, further comprising a transceiver that transmits to an external device that is configured to be connected to the playback device via a network and is configured to hold the correspondence information a request signal for requesting that the external device transmit the correspondence information, and receives the correspondence information transmitted from the external device based on the request signal. ### Claim 5 (depends on 1) The playback device according to claim 1, wherein the correspondence information includes information indicating correspondence relationships between a plurality of types of display devices and brightness ranges that are settable in the display devices. ### Claim 6 (depends on 1) The playback device according to claim 1, wherein the controller transmits to the display device, via the communication component, a request signal for requesting that the display device transmit the correspondence information, and receives, via the communication component, the correspondence information transmitted from the display device based on the request signal. ### Claim 7 (depends on 1) The playback device according to claim 1, wherein the display device includes a plurality of connection terminals for connecting with the playback device, and the controller acquires the setting information every time the playback device is connected to one of the connection terminals, and generates the correspondence information based on a plurality of pieces of the acquired setting information. ### Claim 8 (depends on 1) The playback device according to claim 1, wherein the correspondence information includes setting method information indicating a setting method to the specific brightness range in the display device, and the controller transmits to the display device, via the communication component, instruction information for instructing the display device on the setting change to the specific brightness range based on the setting method information. ### Claim 9 (depends on 1) The playback device according to claim 1, wherein the setting information is EDID (extended display identification data) information, and the specific brightness range is HDR (high dynamic range). ### Claim 10 (depends on 1) The playback device according to claim 1, wherein the controller determines whether the specific brightness has been set in the display device based on the acquired setting information. ### Claim 11 (depends on 1) The playback device according to claim 1, wherein the correspondence information further indicates a correspondence relationship between each connection terminal of the display device and the brightness range that is settable for the connection terminal. ### Claim 12 (depends on 1) The playback device according to claim 1, wherein the controller transmits message signal for prompting a user to change a connection between the playback device and the display device or to change the current setting of the brightness range in the display device as the information related to the setting change to the specific brightness range. ### Claim 13 (depends on 12) The playback device according to claim 12, wherein the controller transmits image signal for indicating a connection terminal of the display device that is compatible to the specific brightness range as the message signal. ### Claim 14 (depends on 12) The playback device according to claim 12, wherein the controller transmits image signal for indicating a path from a main menu screen to a sub menu screen for changing the current setting of the brightness range in the display device to the specific brightness range as the message signal. ### Claim 15 (depends on 12) The playback device according to claim 12, wherein the controller transmits image signal for displaying a message on the display device as the message signal. ### Claim 16 (depends on 3) The playback device according to claim 3, wherein the receiver periodically receives the update information from the external device. ### Claim 17 (depends on 3) The playback device according to claim 3, wherein the update information includes a correspondence relationship between an additional display device and the brightness range that is settable in the additional display device. ### Claim 18 (depends on 6) The playback device according to claim 6, wherein the controller transmits the request signal to the display device using a CEC (Consumer Electronics Control) communication, and receives the correspondence information from the display device using the CEC communication. ### Claim 19 (depends on 7) The playback device according to claim 7, wherein the controller sequentially transmits image signals for prompting a user to sequentially connect a video cable between the playback device and the display device to the communication terminals to acquire the setting information. ### Claim 20 (depends on 8) The playback device according to claim 8, wherein the setting method information indicates a path from a main menu screen to a sub menu screen for setting the brightness range in the display device.