Source: https://patents.google.com/patent/US8587723B2/en
Timestamp: 2019-04-19 19:30:58+00:00

Document:
Electronic equipment and methods for permitting quick control of the operating state of a source equipment side from sink equipment. A television receiver (sink equipment) 100 and an amplifier (repeater equipment) 200 are interconnected over an HDMI cable 610, and the amplifier 200 and a DVD recorder (source equipment) 300 are interconnected over an HDMI cable 620. Each of the pieces of equipment includes, in addition to an HDMI receiving unit and an HDMI transmitting unit, a high-speed data line I/F included in a bidirectional communication unit that uses predetermined lines of the HDMI cable. The bidirectional communication unit is used to transmit channel selection information, a remote control code instructing recording, “theater mode” designating information, a remote control code, or the like from the television receiver 100 to the audio amplifier 200 or DVD recorder 300.
The present application is a national phase entry under 35 U.S.C. §371 of International Application No. PCT/JP2007/071649 filed Nov. 7, 2007, published on May 15, 2008 as WO 2008/056707 A1, which claims priority from Japanese Patent Application No. JP 2006-301486 filed in the Japanese Patent Office on Nov. 7, 2006, Japanese Patent Application No. JP 2007-050426 filed in the Japanese Patent Office on Feb. 28, 2007, and Japanese Patent Application No. JP 2007-201517 filed in the Japanese Patent Office on Aug. 2, 2007.
FIG. 9 shows an example of the arrangement in the communication system 10 shown in FIG. 1 of the high-speed data line interface 103 of the television receiver 100 and the high-speed data line interface 203 a of the audio amplifier 200. The interfaces 103 and 203 a constitute a communication unit that performs local-area network (LAN) communication. The communication unit performs communication using a pair of differential lines out of the multiple lines constituting the HDMI cable 610, that is, in the present embodiment, a reserved line (Ether−line) coupled to an unused (reserve) pin (14 pin) and an HPD line (Ether+line) coupled to an HPD pin (19 pin).
the communication unit transmits at least control information, which signifies control by a control unit of the electronic equipment to attain an operating state selected by a user in the electronic equipment and is used by another control unit of the another electronic equipment to control an operating state of the another electronic equipment to be same as the operating state selected, to the another electronic equipment, wherein the control information is transmitted immediately when a single operation is performed by the user to select the operating state in the electronic equipment.
the communication unit transmits the control information to the another electronic equipment, wherein the control information signifies control by a control unit of the electronic equipment to attain an operating state selected by a user in the electronic equipment and is used by another control unit of the another electronic equipment to control the operating state of the another electronic equipment to be same as the operating state selected, wherein the control information is transmitted immediately when a single operation is performed by the user to select the operating state in the electronic equipment.
the electronic equipment comprises a communication unit that performs bidirectional communication using predetermined lines included in the transmission medium, and a control unit that controls an operating state on the basis of control information received by the communication unit, wherein the control information signifies control by another control unit of the another electronic equipment to attain an operating state selected by a user in the another electronic equipment and is used by the control unit of the electronic equipment to control an operating state of the electronic equipment to be same as the operating state selected, wherein the control information is transmitted immediately from the another electronic equipment when a single operation is performed by the user to select the operating state selected in the another electronic equipment.
the communication unit receives the control information from the another electronic equipment, wherein the control information signifies control by another control unit of the another electronic equipment to attain an operating state selected by a user in the another electronic equipment and is used by a control unit of the electronic equipment to control an operating state of the electronic equipment to be same as the operating state selected, wherein the control information is transmitted immediately from the another electronic equipment when a single operation is performed by the user to select the operating state selected in the another electronic equipment.
"High-Definition Multimedia Interface Specification Version 1.3". Internet Citation, Jun. 22, 2006, XP002391813, Retrieved from the Internet: URL:http://www.hdmi.org/download/HDMI-Spec-1.3-GM1.pdf [retrieved on Jul. 24, 2006].
"High—Definition Multimedia Interface Specification Version 1.3". Internet Citation, Jun. 22, 2006, XP002391813, Retrieved from the Internet: URL:http://www.hdmi.org/download/HDMI—Spec—1.3—GM1.pdf [retrieved on Jul. 24, 2006].
Communication pursuant to Article 94 (3) EPC, from European Application No. 07831380.6-2202, dated Jun. 18, 2012.
Communication pursuant to Article 94 (3) EPC, from European Application No. 07831382.2-2202, dated Jun. 21, 2012.
Hitachi et al: "High-Definition Multimedia Interface Specification Version 1.1" Internet Citation May 20, 2004, page COMPLETE XP007909795 Retrieved from the Internet: URL:http://www.hdmi.org/download/HDMI-Specification-1.1.pdf> [retrieved on Sep. 16, 2009].
Hitachi et al: "High—Definition Multimedia Interface Specification Version 1.1" Internet Citation May 20, 2004, page COMPLETE XP007909795 Retrieved from the Internet: URL:http://www.hdmi.org/download/HDMI—Specification—1.1.pdf> [retrieved on Sep. 16, 2009].
IEEE Standard for Information Technology Telecommunications, Supplement to Carrier Sense Multiple Access with Collision Detection (CSMA/CD)Access Method and Physical Layer Specifications. Physical Layer Parameters and Specifications for 1000 Mb/s Operation Over 4- Pair of Category 5. Balanced Copper Cabling, Type 1000 BASE-T.
Office Action from Japanese Application No. 2008-543096, dated Nov. 22, 2012.
Office Action from Japanese Application No. 2008-543107, dated Mar. 19, 2013.
Office Action from Japanese Application No. 2008-543112, dated Nov. 27, 2012.
Office Action from Japanese Application No. 2008-543113, dated Jan. 8, 2013.
Office Action from Japanese Application No. 2008-543113, dated Jul. 10, 2012.
Office Action from Korean Application No. 10-2009-7006203, dated Sep. 12, 2013.
Supplementary European Search Report Application No. EP 07831380, dated May 25, 2010.

References: §371
 Application No. 07831380
 Application No. 07831382
 Application No. 2008
 Application No. 2008
 Application No. 2008
 Application No. 2008
 Application No. 2008
 Application No. 10