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US 5,113,278 AGranted
Communication system and apparatus using chip signals
AssigneeCanon Kabushiki Kaisha
InventorsYasusaburo Degura, Tetsuo Sakanaka, Haruo Imano
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AssigneeCanon Kabushiki Kaisha
InventorsYasusaburo Degura, Tetsuo Sakanaka, Haruo Imano
Estimating the term…
There are provided a communication system and an apparatus for modulating a communication signal into a chirp signal and executing the communication. In the system, a signal to be transmitted is input, a predetermined analog pattern signal is added to the input signal and is pulse position modulated, the modulated signal is converted into the chirp signal, and the chirp signal is output onto a transmission path. The converted chirp signal can be also converted into an optical signal and the optical signal can be also output onto the transmission path. After the analog or digital input signal was pulse position modulated, by converting the modulated signal into the chirp signal, the analog signal can be also transmitted and received as a chirp signal. Thus, the communication reliability can be assured without being influenced by disturbance noises or irrespective of a limitation of a transmission electric power of the transmission path.
A communication method comprising:
A communication method for executing a predetermined modulating process on an input signal, transmitting and receiving the modulated signal, and executing a predetermined demodulating process on the received modulated signal, comprising:
A communication apparatus comprising:
A communication apparatus comprising:
Dependencies are inferred from the claim text.