1
Katsuaki Matsumoto, Yoshifumi Saeki, Osamu Tazawa, Minoru Kosaka, Masaki Saito, Hiroki Uemura, Tetuo Kanazashi, Seiji Hashimoto, Tsuyoshi Fujiwara, Tsutomu Fukui, Saburo Takaoka, Tsutomu Suzuki, Shozo Nakamuta, Toshihiko Hosaka, Kuniaki Shiratori, Youichiro Tsuda, Takashi Morii, Sumitaka Matsumura, Morihisa Oka: Interactive CATV system. Pioneer Electronic Corporation, Fraser and Bogucki, January 13, 1981: US04245245 (278 worldwide citation)

A two-way CATV system having a substantial number of terminals incorporates a central processor and transmitter system which continually interrogates the terminals at high speed, monitoring changes of usage of premium programs and other data while also permitting central control of access to restric ...


2
Sugiura Toshihiro, Toriyama Shigemitsu: Interactive catv system. Maspro Denkoh, May 10, 2002: JP2002-135749 (1 worldwide citation)

PROBLEM TO BE SOLVED: To restrain an incoming signal transmitted from an information terminal from being inputted into a reception terminal in an interactive CATV system.SOLUTION: The interactive CATV system for transmitting an outgoing signal and an incoming signal has a relay 3 on a transmission p ...


3
Suzuki Masao: Meteorological information obtaining method utilizing interactive catv system and weather forecasting method based on the meteorological information. Miharu Tsushin, January 10, 1995: JP1995-007769

PURPOSE: To unnecessitate special equipments by collecting weather data by relay transmission lines inside a CATV area. CONSTITUTION: When meteorological observation devices 2 installed in respective places on the relay transmission lines 1 perform meteorological observation such as an air temperatu ...


4
Kato Toshio, Ikeda Yoshitaka, Hirose Kunihiko: Down-converter and up-converter for interactive catv system and in-building transmission system for multiple dwelling house. Kandenko, September 14, 2000: JP2000-253371

PROBLEM TO BE SOLVED: To obtain an interactive CATV system for a multiple dwelling house in which an upward signal with superimposed noise is hardly transmitted. SOLUTION: A transmission system where an upward signal in a building for a multiple dwelling house uses a high frequency band (650 MHz or ...


5
Otaka Kunio, Omura Hideyuki, Endo Masao: Interactive catv system, catv network side radio equipment and method for providing interactive catv service. Furukawa Electric The, August 10, 2001: JP2001-218187

PROBLEM TO BE SOLVED: To easily provide an interactive CATV service at low cost to a multiple dwelling house and a detached house.SOLUTION: An interactive CATV system is provided with an extension amplifier 1000 connected to an interactive CATV network (a distribution line ML6) to exchange an intera ...


6
Sugiyama Akio, Arakawa Takashi: Catv system in building and amplifier therefor. Maspro Denkoh, May 31, 2002: JP2002-158988

PROBLEM TO BE SOLVED: To provide a CATV system in a building for transmitting an incoming signal from an external interactive CATV system and a satellite receiving signal received by a satellite receiving antenna to the terminal side, and delivering an incoming signal from the terminal side to the i ...


7
Kim Gwang Su, Lee Han Gyu: Upstream data processing apparatus in interactive catv system. Korea Electronics Technology Institute, July 15, 1999: KR1019960080028

PURPOSE: An upstream data processing apparatus is provided to extract necessary information from data transmitted from subscribers. CONSTITUTION: The upstream data processing apparatus(17) includes the first memory(41) for temporarily storing upstream data upwardly transmitted from a subscriber to a ...


8
Jang Seong Jin: Burst data transmitting control apparatus for interactive catv system. Korea Electronics Technology Institute, November 16, 1999: KR1019960080024

PURPOSE: A burst data transmitting control apparatus for an interactive CATV system is provided to transmit data at a designated time upon receipt of time slot information transmitted from a head-end of a wire broadcasting station. CONSTITUTION: A burst data transmitting control apparatus for an int ...


9
Kim Gwang Su, Lee Han Gyu: Apparatus for generating plcp frame of interactive catv system. Korea Electronics Technology Institute, May 17, 1999: KR1019960080022

PURPOSE: An apparatus for generating a PLCP frame of an interactive CATV system is provided to transmit data again from the member terminal device by notifying a member whether the data transmitted from the member terminal device are received. CONSTITUTION: A read solomon encoder(11) inputs an async ...