EP0455549A2
Expired / Lapsed
EP
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A signal transmission system for remote control of electronic apparatus
Assignee: Sony Corp
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Filing: 1991-04-26
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Granted: —
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Expires: 2011-04-26
Abstract
Abstract The signal transmission system includes concentratedly arranged various kinds of electronic apparatus (4 to 10) capable of transmitting information such as audio and/or video informations and provided with a main control means (3) for controlling those apparatus and auxiliary control means (25,26,27) arranged in a plurality of rooms (20,21,22) via cables (19) so that above information can be properly watched and heard through the above main control means (3). Transmission of information is processed in a short time and a possibility of controlling even an electronic apparatus ( 5,9) having no means for receiving control signals through wire is provided by having the signals outputted in parallel or in parallel and in series, when control signals for demanding transmission of information properly are fed to the various kinds of electronic apparatus from the auxiliary control means (25,26,27) through the main control means (3). <IMAGE> <IMAGE>
Inventors
- 👤 Tetpei Yokota
- 👤 Yoshihiro Machiguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 08:37
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/20; H04B1/205
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
209 words
A signal transmission system in which a plurality of electronic apparatus (4 to 10) capable of transmitting audio and/or video informations are concentratedly installed and in which audio and/or video informations from said electronic apparatus (4 to 10) can be viewed and listened to in a plurality of remote spots (20 to 23), characterized in that it comprises: (a) main control means (3) connected with said plurality of electronic apparatus (4 to 10) and having means for supplying a control signal (41) in parallel or in parallel and in series to said electronic apparatus (4 to 10) so that said electronic apparatus are controlled; (b) sub-control means (25,14a; 26,14b; 27,14c) for receiving audio and/or video informations through said main control means (3) from said plurality of electronic apparatus (4 to 10) and supplying a control signal (42) to said electronic apparatus (4 to 10); and (c) transmitting means (18,19,17a,17b) for connecting said main control means (3) and said sub-control means (25,14a; 26,14b; 27,14c), transmitting the audio and/or video informations from said main control means (3) to said sub-control means (25,14a; 26,14b; 27,14c) and transmitting the control signals (42) for controlling said electronic apparatus (4 to 10) from said sub-control means (25,14a; 26,14b; 27,14c) to said main control means (3).
Claim 2
Dependent Claim
37 words
A signal transmission system according to claim 1, wherein the control signal (41) for controlling said electronic apparatus (4 to 10) is supplied from said main control means (3) to said plurality of electronic apparatus through wire.
Claim 3
Dependent Claim
40 words
A signal transmission system according to claim 1, wherein the control signal (41) for controlling said electronic apparatus (4 to 10) is light-modulated and transmitted from said main control means (3) to said plurality of electronic apparatus (4 to 10).
Claim 4
Dependent Claim
53 words
A signal transmission system according to claim 1, wherein the control signal (41) supplied from said main control means (3) to control said plurality of electronic apparatus (4 to 10) is light-modulated and supplied to said electronic apparatus (4 to 10) and also supplied through wire to said electronic apparatus (4 to 10).
Claim 5
Dependent Claim
47 words
A signal transmission system according to claim 1, wherein the control signal (41) supplied from said main control means (3) to control said electronic apparatus (4 to 10) is light-modulated and supplied to said electronic apparatus (4 to 10) or supplied through wire to said electronic apparatus.
Claim 6
Dependent Claim
67 words
A signal transmission system according to claim 5, wherein said main control means (3) includes switching means (35; 51 to 57, 61 to 67) for selectively switching said control signal (41) in response to the kind of said electronic apparatus (4 to 10) connected thereto so that said control signal (41) is light-modulated and transmitted to said electronic apparatus or supplied through wire to said electronic apparatus.
Claim 7
Dependent Claim
37 words
A signal transmission system according to any one of preceding claims 3, 4, 5 and 6, wherein said control signal (41) for controlling said electronic apparatus (4 to 10) is transmitted by means of an infrared signal.
Claim 8
Dependent Claim
39 words
A signal transmission system according to claim 1, wherein said audio and/or video information, control signal and managing information are modulated in a frequency-multiplex fashion and transmitted between said control means (3) and said sub-control means (25,14a; 26,14b; 27,14c).
Claim 9
Dependent Claim
124 words
A signal transmission system according to claim 1, characterized in that said main control means (3) has means for supplying a first control signal (41) in parallel or in parallel and in series to said electronic apparatus (4 to 10), said sub-control means (25,14a, 26,14b; 27,14c) transmits to said electronic apparatus a second control signal (42) for controlling said electronic apparatus (4 to 10), said transmitting means transmits said second signal (42) for controlling said electronic apparatus from said sub-control means (25,14a; 26,14b; 27,14c) to said main control means (3) and converting means (43 to 47) are provided in said main control means (3) for converting said second control signal (42) from said sub-control means (25,14a; 26,14b; 27,14c) to said first control signal (41).
Claim 10
Dependent Claim
54 words
A signal transmission system according to claim 9, wherein said converting means includes first memory means for storing said first control signal (41) associated with said second control signal (42) and switching means for switching the normal mode into the memory mode when said first control signal (41) is stored in said memory means.
Claim 11
Dependent Claim
68 words
A signal transmission system according to claim 9, wherein said main control means (3) includes switching means (35; 51 to 57, 61 to 67) for selectively switching said second control signal (42) in response to the kinds of said plurality of electronic apparatus (4 to 10) connected to said main control means (3) so that said second control signal (42) is converted into said first control signal (41).
Claim 12
Dependent Claim
30 words
A signal transmission system according to claim 9, wherein at least said first control signal (41) converted by said converting means is light-modulated and transmitted to said electronic apparatus (5,9).
Claim 13
Dependent Claim
26 words
A signal transmission system according to claim 11, wherein said switching means (51 to 57, 61 to 67) is controlled by a central processing unit (47).
Claim 14
Dependent Claim
27 words
A signal transmission system according to claim 11, wherein said main control means (3) includes second memory means (48) for storing switched states of said switching means.
References Cited (Backward Citations)
No citation records indexed.
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