Patent EP0457673A2 successfully refreshed from Google Patents.
EP0457673A2
Expired / Lapsed
EP
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Signal transmission system for a home network
Assignee: Sony Corp
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Filing: 1991-05-14
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Granted: —
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Expires: 2011-05-14
Abstract
Abstract A signal transmission system in which a variety of electronic apparatus (4 to 10,13) which can transmit audio and/or video informations (AV informations) or the like are concentratedly installed is comprised of main control means (3) for controlling a variety of electronic apparatus and sub-control means (25) installed via cables within a plurality of sub-rooms (20 to 22) so that the AV informations can be listened to and viewed through the main control means (3). In order to transmit much more informations within the narrow frequency band, the AV informations are allocated to predetermined channels and a channel content information indicating the AV informations allocated to the respective channels and an owner information indicative of the sub-room of the owner who exclusively uses the electronic apparatus are frequency-multiplexed with the AV informations and transmitted. Therefore, data of a variety sources (4 to 10,13) can be transmitted within the narrow frequency band and a plurality of users can generally understand the present status of the limited sources and select informations, thus avoiding the system from being disturbed.
Inventors
- 👤 Teppei C/O Sony Corporation Yokota
- 👤 Susumu c/o Sony Corporation Morioka
- 👤 Yoshihiro c/o Sony Corporation Machiguchi
- 👤 Yuji c/o Sony Corporation Yamada
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 04:10
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/28; H04L12/2803; H04L12/2816; H04L12/282; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/20; H04B1/205; H04L69/00; H04L69/14; H04N; H04N7/00; H04N7/10; H04N7/106; H04L2012/284; H04L2012/2843; H04L2012/2847; H04L2012/2849; Y; Y02; Y02D; Y02D30/00; Y02D30/50
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
193 words
A signal transmission system in which a plurality of electronic apparatus for transmitting audio and/or video informations are concentratedly installed and audio and/or video informations from said electronic apparatus are transmitted to a plurality of remote positions, comprising: (a) a plurality of receiving means including means for receiving said audio and/or video informations from said plurality of electronic apparatus and means for transmitting control signals to control said plurality of electronic apparatus; (b) transmitting means including means connected to said plurality of electronic apparatus and receiving said control signals transmitted from said receiving means to control said plurality of electronic apparatus and outputting the same to said plurality of electronic apparatus and means for transmitting said audio and/or video information from said plurality of electronic apparatus to said receiving means through channels whose number is limited; and (c) transmitting means for connecting said receiving means and said transmitting means and transmitting said control signals transmitted from said receiving means to said transmitting means to control said plurality of electronic apparatus and channel to which said audio and/or video informations transmitted from said transmitting means to said receiving means in a frequency multiplex fashion.
Claim 2
Dependent Claim
55 words
A signal transmission system according to claim 1, wherein said audio and/or video informations transmitted from said pluralitu of electronic appartus through said transmitting means to said plurality of receiving means are divided into audio transmission channels to which said audio information is assigned and video transmission channels to which said video information is assigned.
Claim 3
Dependent Claim
64 words
A signal transmission system according to claim 2, wherein when an electronic apparatus which transmits video information and audio information associated with said video information is selected from said plurality of electronic apparatus and reproduced, if said audio transmission channels are all occupied, said video information and said audio information are allocated to said video transmission channel in a frequency-multiplex fashion and then transmitted.
Claim 4
Dependent Claim
31 words
A signal transmission system according to claim 1, wherein said audio and/or video information transmitted at least from said transmitting means to said plurality of receiving means is a digital signal.
Claim 5
Dependent Claim
44 words
A signal transmission system according to claim 1, wherein an information indicative of a particular channel to which said audio and/or video information is allocated is transmitted from said transmitting means to said plurality of receiving means together with said audio and/or video information.
Claim 6
Dependent Claim
55 words
A signal transmission system according to claim 1, wherein a signal indicating particular receiving means selected from said plurality of receiving means and which dominantly controls (has a right to control) said plurality of electronic apparatus is transmitted from said transmitting means to said plurality of receiving means together with said audio and/or video information.
Claim 7
Dependent Claim
62 words
A signal transmission system according to claim 6, wherein said receiving means, which dominantly controls said plurality of electronic apparatus, loses the priority right to dominantly control said plurality of electronic apparatus when its reception is abandoned, when its reception channel is switched to receive other audio and/or video information or when a predetermined time is passed after the reception is stopped.
Claim 8
Dependent Claim
32 words
A signal transmission system according to claim 1, wherein said transmitting means includes means for controlling a power supply source which powers said plurality of electronic apparatus connected to said transmitting means.
Claim 9
Dependent Claim
47 words
A signal transmission system according to claim 8, wherein said power supply source which powers said plurality of electronic apparatus is controlled by a signal transmitted from said transmitting means to said plurality of electronic apparatus to indicate said receiving means which dominatly controls these electronic apparatus.
Claim 10
Dependent Claim
198 words
A signal transmission system in which a plurality of electronic apparatus for transmitting audio and/or video informations are concentratedly installed and audio and/or video informations from said electronic apparatus can be listened to and viewed selectively from a plurality of remote positions, comprising: (1) main control means connected to said plurality of electronic apparatus and having means for outputting a control signal to control said plurality of electronic apparatus to said electronic apparatus; (2) a plurality of sub-control means having means for receiving the audio and/or video informations from said various electronic apparatus through said main control means, means for receiving signals transmitted from said main control means and which indicates operation conditions of said plurality of electronic apparatus, and means for transmitting control signals to control said plurality of electronic apparatus; and (3) transmitting means for connecting said main control means and said sub-control means, transmitting the audio and/or video information from said main control means and said signals indicative of operation conditions of said plurality of electronic apparatus to said plurality of sub-control means, and transmitting the control signals transmitted from said plurality of sub-control means to control said electronic apparatus to said main control means.
Claim 11
Dependent Claim
70 words
A signal transmission system according to claim 10, wherein said audio and/or video information transmitted from said main control means to said plurality of sub-control means, said signals indicative of the operation conditions of said plurality of electronic apparatus and said control signals transmitted from said plurality of sub-control means to said main control means to control said plurality of electronic apparatus are frequency-multiplexed and transmitted via a single cable.
Claim 12
Dependent Claim
70 words
A signal transmission system according to claim 11, wherein a signal indicating particular sub-control means selected from said plurality of sub-control means and which dominantly controls (has a right to control) said plurality of electronic apparatus is transmitted from said main control means to said plurality of sub-control means together with said audio and/or video information and said signals indicative of the operation conditions of said plurality of electronic apparatus.
Claim 13
Dependent Claim
58 words
A signal transmission system according to claim 12, further comprising sub-control means for receiving said signal indicative of the particular sub-control means which dominantly controls said plurality of electronic apparatus and transmitting a control signal to said main control means which signal controls with priority the electronic apparatus occupied by said sub-control means regardless of said former signal.
Claim 14
Dependent Claim
62 words
A signal transmission system according to claim 12, wherein said sub-control means, which dominantly controls said plurality of electronic apparatus, loses the priority right to dominantly control said plurality of electronic apparatus when its reception is abandoned, when its reception channel is switched to receive other audio and/or video information or when a predetermined time is passed after the reception is stopped.
Claim 15
Dependent Claim
38 words
A signal transmission system according to claims 10 and 11, wherein a time information and a calendar information are transmitted from said main control means to said plurality of sub-control means together with said audio and/or video information.
Claim 16
Dependent Claim
48 words
A signal transmission system according to claim 15, wherein said sub-control means includes means for controlling said plurality of sub-control means on the basis of said time information and calendar information transmitted from said main control means and/or meanes for displaying said time information and said calendar information.
Claim 17
Dependent Claim
61 words
A receiving apparatus comprising: (i) receiving means for receiving an audio and/or video information from transmitting means which transmits said audio and/or video information; (ii) reproducing means for reproducing the audio and/or video information received by said receiving means; and (iii) control means for transmitting and receiving a control signal which controls at least said receiving means and said transmitting means.
Claim 18
Dependent Claim
21 words
A receiving apparatus according to claim 17, wherein said control signal and said audio and/or video information are frequency-multiplexed and transmitted.
References Cited (Backward Citations)
No citation records indexed.
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