Wireless interconnection method and assembly for establishing a bidirectional communication between audio and/or video devices
First Claim
1. An interconnection method for establishing a bi-directional communication between two audio and/or video devices situated in different rooms in a building, a first of the two audio and/or video devices including a source of audio and/or video electrical signals controllable by a remote-control signal, the second of the two audio and/or video devices comprising a receiver and a remote control of the type generating a remote-control signal unable to pass through the walls or partitions of a building, said method comprising the steps of:
- a) picking up, on the second audio and/or video device side, a remote-control signal emitted by the remote control and retransmitting, by radio link, remote-control information contained in the remote-control signal picked up;
b) receiving, on the first audio and/or video device side, the remote-control information retransmitted by radio link, resending said remote-control information in the form of said remote-control signal to the audio and/or video signal source in order to control the functioning of the latter, and sending, by radio link, audio and/or video signals delivered by said audio and/or video signal source in response to the remote-control signal; and
c) receiving, on the second audio and/or video device side, the audio and/or video signals sent by radio link and delivering said audio and/or video signals thus received to the receiver of the second audio and/or video device;
characterized in that the method further comprises the steps of;
d) inserting, on the second audio and/or video device side, a code in the remote-control information sent by the remote control, so as to transmit coded remote-control information to the first audio and/or video device; and
e) decoding, on the first audio and/or video device side, decoding the coded remote-control information received, comparing the code contained in the coded remote-control information received with a reference code, and rejecting the decoded remote-control information in the event of non-agreement between the two codes, wherein the remote-control information emitted by the remote control consists of an information bit frame, and wherein the coding is effected by replacing a start of each information bit in the frame with a code word composed of several code bits having, in total, a duration shorter than that of an information bit in the frame.
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Accused Products
Abstract
In a interconnection assembly having two relays (R1, R2) for establishing a bi-directional wireless communication between two audio and/or video devices (4, 8) situated in different rooms (2, 3) in a building (1), a first one (4) of the two audio and/or video devices including a source (SAV) of audio and/or video electrical signals which can be controlled by means of a remote-control signal (6), the second (8) of the two audio and/or video devices including a receiver (TV2) and a remote control (TC) generating remote-control signals unable to pass through the walls of a building, one (R2) of the relays sending the remote-control information by radio link to the other relay (R1) which is able to return audio and/or video signals by radio link from the source (SAV) to the relay (R2), a coder (13) is provided for inserting a code in the remote-control information (9) and a decoder is provided (18) for decoding the coded remote-control information received by the relay (R1), comparing the code contained in the coded remote-control information with a reference code, and rejecting the decoded remote-control information in the event of non-agreement between the two codes.
18 Citations
11 Claims
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1. An interconnection method for establishing a bi-directional communication between two audio and/or video devices situated in different rooms in a building, a first of the two audio and/or video devices including a source of audio and/or video electrical signals controllable by a remote-control signal, the second of the two audio and/or video devices comprising a receiver and a remote control of the type generating a remote-control signal unable to pass through the walls or partitions of a building, said method comprising the steps of:
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a) picking up, on the second audio and/or video device side, a remote-control signal emitted by the remote control and retransmitting, by radio link, remote-control information contained in the remote-control signal picked up; b) receiving, on the first audio and/or video device side, the remote-control information retransmitted by radio link, resending said remote-control information in the form of said remote-control signal to the audio and/or video signal source in order to control the functioning of the latter, and sending, by radio link, audio and/or video signals delivered by said audio and/or video signal source in response to the remote-control signal; and c) receiving, on the second audio and/or video device side, the audio and/or video signals sent by radio link and delivering said audio and/or video signals thus received to the receiver of the second audio and/or video device; characterized in that the method further comprises the steps of; d) inserting, on the second audio and/or video device side, a code in the remote-control information sent by the remote control, so as to transmit coded remote-control information to the first audio and/or video device; and e) decoding, on the first audio and/or video device side, decoding the coded remote-control information received, comparing the code contained in the coded remote-control information received with a reference code, and rejecting the decoded remote-control information in the event of non-agreement between the two codes, wherein the remote-control information emitted by the remote control consists of an information bit frame, and wherein the coding is effected by replacing a start of each information bit in the frame with a code word composed of several code bits having, in total, a duration shorter than that of an information bit in the frame. - View Dependent Claims (2, 3, 4)
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5. A wireless interconnection assembly for establishing a bi-directional communication between two audio and/or video devices situated in different rooms in a building, a first of the two audio and/or video devices including an audio and/or video electrical signal source controllable by a remote-control signal, the second of the two audio and/or video devices comprising a receiver and a remote control of a type generating a remote-control signal unable to pass through the walls or partitions of a building, said interconnection assembly comprising a first and second relay connectable, by cables, respectively, to the audio and/or video signal source of the first audio and/or video device and to the receiver of the second audio and/or video device, the second relay having a first receiving means for receiving remote-control information issuing from the remote control and a first sending means for retransmitting said remote-control information, by radio link, to the first relay, said first relay having a second receiving means for receiving the remote-control information retransmitted by the second relay, a second sending means for sending said remote-control information, in the form of said remote-control signal, to the audio and/or video signal source in order to control the functioning thereof, and a third sending means for sending, by radio link, audio and/or video signals delivered by the audio and/or video signal source in response to the remote-control signal, the second relay also having a third receiving means for receiving the audio and/or video signals sent by the third sending means of the first relay and for sending the received audio and/or video signals, by the corresponding cable, to the receiver of the second audio and/or video device,
characterized in that said interconnection assembly also comprises, on the second audio and/or video device side, a coder for inserting a code in the remote-control information and, on the first audio and/or video device side, a decoder for decoding the coded remote-control information received, comparing the code contained in the coded remote-control information received with a reference code stored in the decoder, and rejecting the decoded remote-control information in the event of non-agreement between the two codes, wherein the remote-control information emitted by the remote control consists of an information bit frame, and wherein the coder inserts said code in said remote-control information by replacing a start of each information bit in the frame with a code word composed of several code bits having, in total, a duration shorter than that of an information bit in the frame.
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7. A wireless interconnection assembly for establishing a bi-directional communication between two audio and/or video devices situated in different rooms in a building, a first of the two audio and/or video devices including an audio and/or video electrical signal source controllable by a remote-control signal, the second of the two audio and/or video devices comprising a receiver and a remote control of a type generating a remote-control signal unable to pass through the walls or partitions of a building, said interconnection assembly comprising a first and second relay connectable, by cables, respectively, to the audio and/or video signal source of the first audio and/or video device and to the receiver of the second audio and/or video device, the second relay having a first receiving means for receiving remote-control information issuing from the remote control and a first sending means for retransmitting said remote-control information, by radio link, to the first relay, said first relay having a second receiving means for receiving the remote-control information retransmitted by the second relay, a second sending means for sending said remote-control information, in the form of said remote-control signal, to the audio and/or video signal source in order to control the functioning thereof, and a third sending means for sending, by radio link, audio and/or video signals delivered by the audio and/or video signal source in response to the remote-control signal, the second relay also having a third receiving means for receiving the audio and/or video signals sent by the third sending means of the first relay and for sending the received audio and/or video signals, by the corresponding cable, to the receiver of the second audio and/or video device,
characterized in that said interconnection assembly also comprises, on the second audio and/or video device side, a coder for inserting a code in the remote-control information and, on the first audio and/or video device side, a decoder for decoding the coded remote-control information received, comparing the code contained in the coded remote-control information received with a reference code stored in the decoder, and rejecting the decoded remote-control information in the event of non-agreement between the two codes, wherein the coder is disposed in the second relay between the first receiving means and the first sending means, and the decoder is disposed in the first relay between the second receiving means and the second sending means, wherein the remote-control information consists of an information bit frame, and wherein the coder has a first code memory containing a code word composed of several code bits having together a duration shorter than that of any information bit in said frame, and means for inserting said code word at the start of each information bit in the information bit frame coming from the first receiving means, and for delivering a coded frame to the first sending means.
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11. A remote-control signal comprising a frame of information bits for controlling a function in an audio and/or video signal source, characterized in that said remote control signal contains a code word for identifying the remote control from which the remote-control signal came, characterized in that the code word is composed of several code bits having together a duration shorter than that of any information hit in said frame, said code word being inserted at the start of each information bit in said frame.
Specification