Communication apparatus, communication system and method of...

Details Communication apparatus, communication system and method of... Communication apparatus, communication system and method of...

2006-02-21

2006-02-21

Barrón, Jr., Gilberto (Department: 2132)

Cryptography

Communication system using cryptography

Wireless communication

C380S200000, C380S210000

Reexamination Certificate

active

07003115

ABSTRACT:
A communication apparatus capable of reducing the amount of communication with other communication apparatuses is provided, wherein a content signal of a popular program is broadcasted in advance from a broadcast base station to terminals and stored in a memory of each. In a terminal, when a content signal specified by a play instruction signal is stored in the memory, the content signal is read from the memory. On the other hand, when it is not stored in the memory, the terminal requests the specified content signal from the cellular base station via a cellular network and receives the specified content signal.

REFERENCES:
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patent: 5557541 (1996-09-01), Schulhof et al.
patent: 6061056 (2000-05-01), Menard et al.
patent: 6118873 (2000-09-01), Lotspiech et al.
patent: 6625811 (2003-09-01), Kaneko
patent: 0 741 468 (1996-11-01), None
patent: 0 804 012 (1997-10-01), None
JP 10303840, Kaneko, “Multichannel broadcasting system”, Nov. 23, 1998.

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