JPS6489728A - Private broadcasting control system - Google Patents
Private broadcasting control systemInfo
- Publication number
- JPS6489728A JPS6489728A JP24408987A JP24408987A JPS6489728A JP S6489728 A JPS6489728 A JP S6489728A JP 24408987 A JP24408987 A JP 24408987A JP 24408987 A JP24408987 A JP 24408987A JP S6489728 A JPS6489728 A JP S6489728A
- Authority
- JP
- Japan
- Prior art keywords
- private broadcasting
- broadcasting unit
- signal
- private
- outputted
- 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
Abstract
PURPOSE:To control a private broadcasting unit without using an exclusive-use control signal line by outputting a sound signal by an information receiving timing signal for a private broadcasting unit and when it is not outputted, controlling not to output acoustic information. CONSTITUTION:When a private broadcasting unit 106 is activated through an extension telephone set 110a, a handset is picked up and off-hooked and a private broadcasting unit activating button is pushed down and inputted. A central control part 102 confirms that the private broadcasting unit 106 is not used and instructs a frame signal sending toward the private broadcasting unit 106 to a frame signal control part 104. Thus, an SYNCS signal 109n is outputted with the output timing of an SYNCn signal 204n. The private broadcasting unit 106, when the SYNCS signal 109n is sent, energizes a speaker driving circuit 304 and acoustically outputs a voice pattern sent from the extension telephone set.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24408987A JPS6489728A (en) | 1987-09-30 | 1987-09-30 | Private broadcasting control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24408987A JPS6489728A (en) | 1987-09-30 | 1987-09-30 | Private broadcasting control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6489728A true JPS6489728A (en) | 1989-04-04 |
Family
ID=17113575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24408987A Pending JPS6489728A (en) | 1987-09-30 | 1987-09-30 | Private broadcasting control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6489728A (en) |
-
1987
- 1987-09-30 JP JP24408987A patent/JPS6489728A/en active Pending
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