JPS6489827A - Talking channel switching system in portable telephone system - Google Patents
Talking channel switching system in portable telephone systemInfo
- Publication number
- JPS6489827A JPS6489827A JP62246789A JP24678987A JPS6489827A JP S6489827 A JPS6489827 A JP S6489827A JP 62246789 A JP62246789 A JP 62246789A JP 24678987 A JP24678987 A JP 24678987A JP S6489827 A JPS6489827 A JP S6489827A
- Authority
- JP
- Japan
- Prior art keywords
- talking
- channel
- telephone set
- connection device
- radio connection
- 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.)
- Pending
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
PURPOSE:To attain effective utilization of a frequency by selecting a new talking channel capable of talking to a radio connection device to a manual talking channel changeover request from a handy telephone set during talking and issuing a command it to the portable telephone set. CONSTITUTION:When the portable telephone set 9 is communicated with, e.g., a radio connection device 7, when a radio wave interference takes place and the user of the handy telephone set 9 turns on a manual switch for talking channel changeover, a channel switching request from the telephone set 9 is sent to the radio connection device 7. The radio connection device 7 checks the operating state of all talking channels including a spare channel and selects any of idle talking channels to issue a command to the telephone set 9 and the channel is switched to the command channel and it is also switched to the channel. Thus, even if the standby channel is busy in a faulty state such as radio wave interference, the talking is consecutive through a new talking channel thereby utilizing effectively the frequency.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62246789A JPS6489827A (en) | 1987-09-30 | 1987-09-30 | Talking channel switching system in portable telephone system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62246789A JPS6489827A (en) | 1987-09-30 | 1987-09-30 | Talking channel switching system in portable telephone system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6489827A true JPS6489827A (en) | 1989-04-05 |
Family
ID=17153695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62246789A Pending JPS6489827A (en) | 1987-09-30 | 1987-09-30 | Talking channel switching system in portable telephone system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6489827A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5044010A (en) * | 1990-03-29 | 1991-08-27 | At&T Bell Laboratories | Arrangement and method for selecting an available communication channel for a cordless telephone |
US5243641A (en) * | 1990-08-01 | 1993-09-07 | At&T Bell Laboratories | Extended range cordless telephone system |
US5323447A (en) * | 1991-11-01 | 1994-06-21 | At&T Bell Laboratories | Apparatus and method for modifying a frequency hopping sequence of a cordless telephone operating in a frequency hopping system |
US5363430A (en) * | 1989-12-27 | 1994-11-08 | Sony Corporation | Cordless telephone apparatus having a low power stand-by mode and a hold mode |
US5375163A (en) * | 1991-04-25 | 1994-12-20 | Matsushita Electric Industrial Co., Ltd. | Multi-channel cordless telephone system for maintaining master-slave communication |
US5428669A (en) * | 1991-01-08 | 1995-06-27 | Thomson Consumer Electronics, Inc. | Automatic channel selection system for a cordless telephone |
JP2008228046A (en) * | 2007-03-14 | 2008-09-25 | Mitsubishi Electric Corp | Fault diagnosis system and fault diagnosis method for wireless network |
-
1987
- 1987-09-30 JP JP62246789A patent/JPS6489827A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5363430A (en) * | 1989-12-27 | 1994-11-08 | Sony Corporation | Cordless telephone apparatus having a low power stand-by mode and a hold mode |
US5044010A (en) * | 1990-03-29 | 1991-08-27 | At&T Bell Laboratories | Arrangement and method for selecting an available communication channel for a cordless telephone |
US5243641A (en) * | 1990-08-01 | 1993-09-07 | At&T Bell Laboratories | Extended range cordless telephone system |
US5428669A (en) * | 1991-01-08 | 1995-06-27 | Thomson Consumer Electronics, Inc. | Automatic channel selection system for a cordless telephone |
CN1037566C (en) * | 1991-01-08 | 1998-02-25 | 汤姆森消费电子有限公司 | Automatic channel selection system for cordless telephone |
US5375163A (en) * | 1991-04-25 | 1994-12-20 | Matsushita Electric Industrial Co., Ltd. | Multi-channel cordless telephone system for maintaining master-slave communication |
US5323447A (en) * | 1991-11-01 | 1994-06-21 | At&T Bell Laboratories | Apparatus and method for modifying a frequency hopping sequence of a cordless telephone operating in a frequency hopping system |
JP2008228046A (en) * | 2007-03-14 | 2008-09-25 | Mitsubishi Electric Corp | Fault diagnosis system and fault diagnosis method for wireless network |
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