Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2007-09-18
2007-09-18
Chan, Wing (Department: 2616)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S352000, C370S389000, C370S401000
Reexamination Certificate
active
09431902
ABSTRACT:
A gateway apparatus according to the present invention, arranged between each of a plurality of circuit switched networks and the Internet, for transmitting data received from each of the circuit switched network to the Internet. The gateway apparatus comprises an expansion section expanding compressed data received from the circuit switched network, a compression section compressing the data expanded by the expansion section, a setting section setting a compression form, including a transmission rate on the internet protocol network, of data compressed by the compression section, and a controller transmitting the compressed data to the internet protocol network without performing expansion/compression processes by the expansion section and the compression section when the compressed data can be expanded by another gateway apparatus which should receive the compressed data and when a transmission rate on the circuit switched network of the compressed data is not higher than a transmission rate set by the setting section.
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Notice Of Reason for Rejection dated Nov. 16, 2004, with translation.
Shigeyuki Sekesawa, et al. “Control Function” The Journal of the Institute of Image Information and Television Engineers, vol. 52, No. 12, pp. 1769-1773, Dec. 20, 1998.
Ohtsu Kazuyuki
Suzuki Hiroko
Tashiro Masayuki
Chan Wing
Fujitsu Limited
Katten Muchin & Rosenman LLP
Scheibel Robert C
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