Method and a system for communication of control information from a control information generator to one or more computer installations
First Claim
1. A method for initiating an action controlled by a pre-stored program in one or more computer installations by communication of a control information message from a control information generator in a server installation remote from said one or more computer installations, comprising the steps ofgenerating said control information message in the control information generator as a message of alpha-numeric information,encoding said message into a signal sequence of a relatively short duration,adding a start indicator signal and an end indicator signal at the beginning and end of said signal sequence,incorporating said signal sequence with said start and end indicator signals into an overall audio or video information carrying signal comprising signal parts from other signal sources than said control information generator,communicating said overall signal to said one or more computer installations,retrieving said signal sequence from said overall signal at each of said computer installations,decoding said signal sequence into said message of alpha-numeric information, andusing said message to initiate said action in each of said computer installations, said action being of a duration substantially longer than said relatively short duration and comprising other than the reproduction of information contained in said control information message.
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Abstract
A control information message is communicated from a control information generator and encoder (3) in a server installation (1) to one or more computer installations (2) by encoding the message into a single sequence of a relatively short duration, which is incorporated into an overall audio or video information carrying signal and transmitted to the user computer installation through a wired or wireless transmission media. In the user computer installations the received signal sequence is retrieved from the overall signal and decoded into the original message which is then used to initiate an action controlled by a prestored program in the user computer installation (2).
124 Citations
41 Claims
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1. A method for initiating an action controlled by a pre-stored program in one or more computer installations by communication of a control information message from a control information generator in a server installation remote from said one or more computer installations, comprising the steps of
generating said control information message in the control information generator as a message of alpha-numeric information, encoding said message into a signal sequence of a relatively short duration, adding a start indicator signal and an end indicator signal at the beginning and end of said signal sequence, incorporating said signal sequence with said start and end indicator signals into an overall audio or video information carrying signal comprising signal parts from other signal sources than said control information generator, communicating said overall signal to said one or more computer installations, retrieving said signal sequence from said overall signal at each of said computer installations, decoding said signal sequence into said message of alpha-numeric information, and using said message to initiate said action in each of said computer installations, said action being of a duration substantially longer than said relatively short duration and comprising other than the reproduction of information contained in said control information message.
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25. A system for initiating an action controlled by a pre-stored program in one or more computer installations by communication of control information from a control information generator remote from said one or more computer installations, said control information generator comprising:
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means for generating said control information in the form of a message of alpha-numeric information, means for encoding said message into a signal sequence of a relatively short duration, said control information generator forming part of a server installation comprising means for incorporating said signal sequence with said start and end indicator signals into an overall audio and/or video information carrying signal comprising signal parts from other sources than said control information generator, means for adding a start indicator signal and an end indicator signal at the beginning and end of said sequence means for communicating said overall signal including said signal sequence with said start and end indicator signals to said one or more computer installations, and each of said computer installations comprising means for retrieving said signal sequence from said overall signal, means for decoding said signal sequence into said message of alpha-numeric information, and means for using said message to initiate said action controlled in each of said computer installations, said action being of a duration substantially loner than said relatively short duration and comprising other than the reproduction of the information contained in said control information message. - View Dependent Claims (26, 27, 28, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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29. A system for initiating an action controlled by a prestored programme in one or more computer installations (2) by communication of control information from a control information generator (3) remote from said one or more computer installations, said control information generator (3) comprising
means (10) for generating said control information in the form of a message of alpha-numeric information, means (11, 12) for encoding said message into a signal sequence of a relatively short duration, said control information generator (3) forming part of a server installation (1) comprising means (4) for incorporating said signal sequence into an overall audio and/or video information carrying signal comprising signal parts from other sources than said control information generator (3), means (13) for adding a start indicator signal and an end indicator signal at the beginning and end of said sequence, and means for communicating said overall signal including said signal sequence with said start and end indicator signals to said one or more computer installations (2), and each of said computer installations (2) comprising means (7) for retrieving said signal sequence from said overall signal, means (15-19) for decoding said signal sequence into said message of alpha-numeric information, and means (9) for using said message to initiate said action controlled in each of said computer installations, said action being of a duration substantially longer than said relatively short duration.
Specification