JPS54112116A - Multiple-address radio communication system and its receiver - Google Patents
Multiple-address radio communication system and its receiverInfo
- Publication number
- JPS54112116A JPS54112116A JP2009878A JP2009878A JPS54112116A JP S54112116 A JPS54112116 A JP S54112116A JP 2009878 A JP2009878 A JP 2009878A JP 2009878 A JP2009878 A JP 2009878A JP S54112116 A JPS54112116 A JP S54112116A
- Authority
- JP
- Japan
- Prior art keywords
- address
- receiver
- signal
- general
- broadcast
- 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
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
PURPOSE: To eliminate the open leakage of important information by allowing the receiver of a system, which transfers information to a specific receiver in a specific area, to receive a general broadcast normally and to receive a multiple-address signal by switching automatically and definitely for multiple address communication.
CONSTITUTION: The multiple-address radio talking system including a multiple- address transmitter and multiple-address receiver is equipped with synchronous communication start signal generating part 4 and multiple-address communication object receiver selective signal generating part 5, which are both connected to alternation switch S1 for multiple-address communication mudulation contents generating a pre-signal and multiple-address signal, at radio transmission section 200. Further, specific receiver 200 is provided with medium-wave and FM-wave broadcast reception parts 16 and 17 which receive general midium waves and radio waves from FM broadcasting station 24, and multiple-address communication object listener selective signal discrimination part 13 connected to multiple-address reception part 13 detecting pre-signals generated by generating parts 4 and 5 in transmission section 200, in addition to receiver-content alternation switch S3 and general-broadcast switch S7 controlled by FF23 which changes general-broadcast reception over to multiple-address signal reception.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009878A JPS54112116A (en) | 1978-02-22 | 1978-02-22 | Multiple-address radio communication system and its receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009878A JPS54112116A (en) | 1978-02-22 | 1978-02-22 | Multiple-address radio communication system and its receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54112116A true JPS54112116A (en) | 1979-09-01 |
Family
ID=12017634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009878A Pending JPS54112116A (en) | 1978-02-22 | 1978-02-22 | Multiple-address radio communication system and its receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54112116A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57138443U (en) * | 1981-02-24 | 1982-08-30 |
-
1978
- 1978-02-22 JP JP2009878A patent/JPS54112116A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57138443U (en) * | 1981-02-24 | 1982-08-30 |
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