JPS5760748A - Portable telephone set - Google Patents
Portable telephone setInfo
- Publication number
- JPS5760748A JPS5760748A JP55136426A JP13642680A JPS5760748A JP S5760748 A JPS5760748 A JP S5760748A JP 55136426 A JP55136426 A JP 55136426A JP 13642680 A JP13642680 A JP 13642680A JP S5760748 A JPS5760748 A JP S5760748A
- Authority
- JP
- Japan
- Prior art keywords
- portable telephone
- receiver
- land mobile
- mobile radiotelephone
- call signal
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
- H04M1/73—Battery saving arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
PURPOSE:To reduce the consumption of a battery of a portable telephone, by giving different start signals to a land mobile radiotelephone and the portable telephone and by breaking the power source of the receiver during receiving of the call number when the call signal to the land mobile radiotelephone is received. CONSTITUTION:Different start signals are given to a land mobile radiotelephone and a portable telephone, and the output from a receiver 1 is supplied to a differentiating circuit 2 and a shift register 6 of a bit synchronizing circuit 5, and the bit rate of the call signal from the receiver 1 is applied to the register 6 as a clock of a prescribed frequency by the differentiating circuit 2. The output of prescribed bits of the register 6 is applied to coincidence detecting circuits 7 and 8 to discriminate the call number for the portable telephone of a land mobile radiotelephone or the like is received or not, and an FF9 is controlled by outputs of circuits 7 and 8 to break the power source of the receiver 1 during receiving of the call signal, thus reducing the consumption of the battery of the portable telephone.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55136426A JPS5760748A (en) | 1980-09-29 | 1980-09-29 | Portable telephone set |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55136426A JPS5760748A (en) | 1980-09-29 | 1980-09-29 | Portable telephone set |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5760748A true JPS5760748A (en) | 1982-04-12 |
Family
ID=15174867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55136426A Pending JPS5760748A (en) | 1980-09-29 | 1980-09-29 | Portable telephone set |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5760748A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6434026A (en) * | 1987-07-10 | 1989-02-03 | Koninkl Philips Electronics Nv | Paging receiver |
-
1980
- 1980-09-29 JP JP55136426A patent/JPS5760748A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6434026A (en) * | 1987-07-10 | 1989-02-03 | Koninkl Philips Electronics Nv | Paging receiver |
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