IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0144349
(1998-08-31)
|
우선권정보 |
JP-0258274 (1997-09-24) |
발명자
/ 주소 |
|
출원인 / 주소 |
- Toyota Jidosha Kabushiki Kaisha
|
대리인 / 주소 |
Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
|
인용정보 |
피인용 횟수 :
16 인용 특허 :
8 |
초록
▼
Between communication equipment to be loaded in a vehicle and a base station, CDMA data communication is performed. A speed sensor detects a traveling speed. When the speed sensor crosses a speed determining value, a communication speed is changed. When the vehicle is at a halt or travels at a low s
Between communication equipment to be loaded in a vehicle and a base station, CDMA data communication is performed. A speed sensor detects a traveling speed. When the speed sensor crosses a speed determining value, a communication speed is changed. When the vehicle is at a halt or travels at a low speed, the communication speed is set to be high. When the traveling speed exceeds the speed determining value resulting from acceleration, the communication speed is decreased. Satisfactory communication is performed in the whole speed range, and data communication can be performed at the maximum speed. In order to change the communication speed, for example, a chip rate of PN code is changed. Also, the number of PN codes to which parallel processing is simultaneously applied is changed. Thus, it is possible to set the communication speed to be high even in a high-speed mobile object.
대표청구항
▼
Between communication equipment to be loaded in a vehicle and a base station, CDMA data communication is performed. A speed sensor detects a traveling speed. When the speed sensor crosses a speed determining value, a communication speed is changed. When the vehicle is at a halt or travels at a low s
Between communication equipment to be loaded in a vehicle and a base station, CDMA data communication is performed. A speed sensor detects a traveling speed. When the speed sensor crosses a speed determining value, a communication speed is changed. When the vehicle is at a halt or travels at a low speed, the communication speed is set to be high. When the traveling speed exceeds the speed determining value resulting from acceleration, the communication speed is decreased. Satisfactory communication is performed in the whole speed range, and data communication can be performed at the maximum speed. In order to change the communication speed, for example, a chip rate of PN code is changed. Also, the number of PN codes to which parallel processing is simultaneously applied is changed. Thus, it is possible to set the communication speed to be high even in a high-speed mobile object. poro 060, Japan, 1996. Masaharu Munetomo, et al., "On Tracking-ability of a Stochastic Genetic Algorithm to Changing Environments," Information and Data Analysis, Division of Systems and Information Engineering, Hokkaido University, Sapporo 060, Japan, 1996. Masaharu Munetomo, et al., An Adaptive Network Routing Algorithm Employing Path Genetic Operators, Information and Data Analysis, Graduate School of Engineering, Hokkaido University, Sapporo, 060, Japan, 1997. Munetomo et al., "An Efficient Migration Scheme for Subpopulation-Based Asynchronously Parallel Genetic Algorithms" Hokkaido University, Jul, 1993. Munetomo, et al., "A Genetic Approach to Dynamic Load Balancing in a Distributed Computing System" Hokkaido University, Dec., 1993. Munetomo, et al. On Tracking-ability of a Stochastic Genetic Algorithm to Changing Environments, Hokkaido University. Munetomo, et al. "A Stochastic Genetic Algorithm for Dynamic Load Balancign in Distributed Systems" Hokkaido University.
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