Audio and/or video transmission system
First Claim
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1. An audio and/or video transmission system, comprising:
- at least one microphone unit for detecting an audio signal; and
a camera unit;
wherein the microphone unit comprises;
a first wireless transmitting unit for wirelessly transmitting the detected audio signal by way of a first transmission path to a first wireless receiving unit;
a time stamp receiving unit adapted to receive time stamps from a time stamp producing unit; and
a second wireless transmitting unit being different from the first wireless transmitting unit and being adapted to embed the received time stamps in the detected audio signal and wirelessly transmit the detected audio signal having said embedded time stamps by way of a second transmission path to a second receiving unit that is independent of the first receiving unit;
wherein the camera unit includes;
the first wireless receiving unit for receiving the detected audio signal wirelessly transmitted by way of the first transmission path from the first wireless transmitting unit; and
the time stamp producing unit for producing and transmitting time stamps to the time stamp receiving unit of the at least one microphone unit; and
wherein the first and second transmission paths are independent from each other.
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Abstract
There is provided an audio and/or video transmission system. That audio and/or video transmission system has a microphone unit for detecting an audio signal. The microphone unit has a first wireless transmitting unit for wirelessly transmitting an audio signal by way of a first transmission path and a second wireless transmitting unit for wirelessly transmitting the audio signal by way of a second transmission path. The second wireless transmitting unit is adapted to embed a time stamp in the audio signal to be transmitted by way of the second transmission path.
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Citations
15 Claims
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1. An audio and/or video transmission system, comprising:
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at least one microphone unit for detecting an audio signal; and a camera unit; wherein the microphone unit comprises; a first wireless transmitting unit for wirelessly transmitting the detected audio signal by way of a first transmission path to a first wireless receiving unit; a time stamp receiving unit adapted to receive time stamps from a time stamp producing unit; and a second wireless transmitting unit being different from the first wireless transmitting unit and being adapted to embed the received time stamps in the detected audio signal and wirelessly transmit the detected audio signal having said embedded time stamps by way of a second transmission path to a second receiving unit that is independent of the first receiving unit; wherein the camera unit includes; the first wireless receiving unit for receiving the detected audio signal wirelessly transmitted by way of the first transmission path from the first wireless transmitting unit; and the time stamp producing unit for producing and transmitting time stamps to the time stamp receiving unit of the at least one microphone unit; and wherein the first and second transmission paths are independent from each other. - View Dependent Claims (2, 7, 8, 9, 11, 12, 14)
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3. A microphone unit for detecting an audio signal, comprising:
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a first wireless transmitting unit for wirelessly transmitting the detected audio signal to a camera unit by way of a first transmission path; a time stamp receiving unit configured to receive time stamps produced by the camera unit; storage means configured to record the detected audio signal together with the received time stamps; and a different second wireless transmitting unit for wirelessly transmitting the detected audio signal and time stamps by way of a second transmission path to a second receiving unit that is independent of the camera unit if the first transmission path is disturbed; wherein the second wireless transmitting unit is adapted to embed the received time stamps in the detected audio signal to be transmitted by way of the second transmission path; wherein, in case of failure of the second transmission path, the second wireless transmitting unit is further adapted to subsequently retransmit the recorded audio signal together with the time stamps by way of the second transmission path; and wherein the first and second transmission paths are independent from each other and use different frequency bands and different transmission protocols. - View Dependent Claims (4, 5, 6, 10, 13, 15)
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Specification