JPS6432736A - Code division multiple access communications device - Google Patents
Code division multiple access communications deviceInfo
- Publication number
- JPS6432736A JPS6432736A JP62187652A JP18765287A JPS6432736A JP S6432736 A JPS6432736 A JP S6432736A JP 62187652 A JP62187652 A JP 62187652A JP 18765287 A JP18765287 A JP 18765287A JP S6432736 A JPS6432736 A JP S6432736A
- Authority
- JP
- Japan
- Prior art keywords
- communications channel
- channel
- diffusion code
- signal
- generating circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE:To detect the signal of a prescribed communications channel without providing as many correlation detecting circuits as ever by timely switching a reference signal specified with a diffusion code corresponding to a communications channel by means of a convolver. CONSTITUTION:At a diffusion code selecting circuit 7, the diffusion code corresponding to the said communications channel inputted from a channel number generating circuit 6 is generated by a diffusion code generating circuit 8. The channel number generating circuit 6 generates, after a prescribed time passes, the channel number corresponding to the next communications channel and waits for the signal of the said communications channel. The above-mentioned action is repeated to all allocated channels, the existence of the signals of all channels is decided, and when the signal exists, the channel number and a synchronizing timing are transmitted to a receiver. Thus, the correlation detecting circuits need not be provided in large numbers, and the communications channel can be specified by a simple and cheap constitution.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62187652A JP2537520B2 (en) | 1987-07-29 | 1987-07-29 | Code division multiple access device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62187652A JP2537520B2 (en) | 1987-07-29 | 1987-07-29 | Code division multiple access device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6432736A true JPS6432736A (en) | 1989-02-02 |
JP2537520B2 JP2537520B2 (en) | 1996-09-25 |
Family
ID=16209842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62187652A Expired - Fee Related JP2537520B2 (en) | 1987-07-29 | 1987-07-29 | Code division multiple access device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2537520B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002102730A (en) * | 2000-10-03 | 2002-04-09 | Ishikawajima Harima Heavy Ind Co Ltd | Vertical mill |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60220635A (en) * | 1984-04-17 | 1985-11-05 | Clarion Co Ltd | Spread spectrum transmitter and receiver |
-
1987
- 1987-07-29 JP JP62187652A patent/JP2537520B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60220635A (en) * | 1984-04-17 | 1985-11-05 | Clarion Co Ltd | Spread spectrum transmitter and receiver |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002102730A (en) * | 2000-10-03 | 2002-04-09 | Ishikawajima Harima Heavy Ind Co Ltd | Vertical mill |
Also Published As
Publication number | Publication date |
---|---|
JP2537520B2 (en) | 1996-09-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |