Information delivery
OwnerAbolghasem Chizariinventor
Life of this patent
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Abstract
An information delivery system comprising a transmitter arranged such that it is capable of performing at least one of, receiving a received signal corresponding to an audio signal, which is either a digital signal or which the transmitter is arranged to process into a digital signal; and receiving a digital signal providing information, and the transmitter being arranged to modulate a radio frequency carrier according to either or both digital signals, the system further comprising a receiver arranged to receive the modulated carrier such that the received modulated carrier induces power in the receiver to allow the digital signal to be detected therein, and the receiver being further arranged to allow either or both of the audio signal and the information to be recovered from the detected digital signal.
Claims25
An information delivery system comprising a transmitter unit arranged such that it is capable of performing at least one of:
- 1. receiving a received signal corresponding to an audio signal which is either a digital signal or which the transmitter unit is arranged to process into a digital signal;
- and
- 2. receiving a digital signal providing information,
- and the transmitter unit comprising a digital signal transmitter arranged to modulate, using an on-off modulation scheme, a radio frequency carrier according to either or both digital signals, the system further comprising a receiver unit arranged to receive the modulated carrier such that the received modulated carrier induces power in a digital signal receiver to allow the digital signal to be detected therein and the receiver unit being further arranged to allow either or both of the audio signal and the information to be recovered from the detected digital signal.
A method of delivering an audio signal and/or an information signal comprising receiving a received signal corresponding to the audio signal and/or the information signal, ensuring that the signal is a digital signal, using the digital signal to modulate, using an ON-OFF modulation scheme, a radio frequency carrier, transmitting, using a digital signal transmitter, the modulated carrier to a receiver unit, and using the received modulated carrier to induce a current in a digital signal receiver which allows the digital signal to be detected within the carrier and thereafter recovered therefrom.
A method according to clam 14 which comprises using a beam shaping antenna within the transmitter unit in order that an area of a predetermined shaped is covered by the modulated carrier.
Dependencies are inferred from the claim text.