Superposition of data over voice
First Claim
1. A method for transmitting data messages between a first communication device and a second communication device that exchange voice messages over a communication channel, the method comprising:
- establishing a communication session between the first and second devices over the communication channel;
transmitting digital data from the first device to the second device during the establishing step; and
exchanging voice messages between the first and second device over the communication channel during the communication session,wherein the digital data includes a sequence of unique signals comprising a predetermined number of basic signals each having a fixed frequency and a unique amplitude and wherein establishing the communication session includes sending an identifying message from the first device to the second device including an identifier reflecting at least one of a set of frequencies corresponding to the fixed frequencies of each basic signal and a fixed time period corresponding to at least one set of basic signals that are transmitted with the digital data.
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Abstract
Method and apparatus for transmitting messages between communication devices via a communication channel allowing at least voice messages to be transmitted, the messages including data subdivided in a sequence of basic data units, the method including: a) encoding the basic data units as unique signals (usj) including a predetermined number of basic signals (bi), each basic signal having a unique fixed frequency (fi); b) transmitting a sequence of unique signals (usj) during a sequence of fixed time periods (t1, t2, t3, . . . ); c) receiving and decoding the sequence of unique signals (usj) into the sequence of basic data units; the data being transmitted in superposition over voice.
88 Citations
36 Claims
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1. A method for transmitting data messages between a first communication device and a second communication device that exchange voice messages over a communication channel, the method comprising:
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establishing a communication session between the first and second devices over the communication channel; transmitting digital data from the first device to the second device during the establishing step; and exchanging voice messages between the first and second device over the communication channel during the communication session, wherein the digital data includes a sequence of unique signals comprising a predetermined number of basic signals each having a fixed frequency and a unique amplitude and wherein establishing the communication session includes sending an identifying message from the first device to the second device including an identifier reflecting at least one of a set of frequencies corresponding to the fixed frequencies of each basic signal and a fixed time period corresponding to at least one set of basic signals that are transmitted with the digital data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for transmitting data messages comprising:
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a first device; a second device; and a communications channel interconnecting the first and second devices for exchanging voice messages between the first and second devices, wherein the first and second devices are configured to establish a communication session over the communication channel that includes sending an identifying message from the first device to the second device including an identifier reflecting at least one of a set of frequencies corresponding to the fixed frequencies of each basic signal and a fixed time period corresponding to at least one set of basic signals that are transmitted with the digital data, exchange voice messages over the communication channel during the communication session, and transmit digital data over the communication channel, the digital data including a sequence of unique signals comprising a predetermined number of basic signals each having a fixed frequency and a unique amplitude. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A computer-readable medium including instructions for performing a method, when executed by a processor, for transmitting data messages between a first communication device and a second communication device that exchange voice messages over a communication channel, the method comprising:
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establishing a communication session between the first and second devices over the communication channel; transmitting digital data from the first device to the second device during the establishing step; and exchanging voice messages between the first and second device over the communication channel during the communication session, wherein the digital data includes a sequence of unique signals comprising a predetermined number of basic signals each having a fixed frequency and a unique amplitude, and wherein establishing the communication session includes sending an identifying message from the first device to the second device including an identifier reflecting at least one of a set of frequencies corresponding to the fixed frequencies of each basic signal and a fixed time period corresponding to at least one set of basic signals that are transmitted with the digital data. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification