JPS5948168U - Transportable intercom device - Google Patents
Transportable intercom deviceInfo
- Publication number
- JPS5948168U JPS5948168U JP14248482U JP14248482U JPS5948168U JP S5948168 U JPS5948168 U JP S5948168U JP 14248482 U JP14248482 U JP 14248482U JP 14248482 U JP14248482 U JP 14248482U JP S5948168 U JPS5948168 U JP S5948168U
- Authority
- JP
- Japan
- Prior art keywords
- intercom device
- transportable
- modulated
- transmitter
- receiver
- 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
- 239000000284 extract Substances 0.000 claims 1
- 230000005236 sound signal Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の搬送式モニタテレビ付インターホン装置
のブロック図、第２図は本考案の搬送式モニタテレビ付
インターホン装置のブロック図、第３図は第２図におけ
る制御回路の具体的構成を示す説明図である。
１・・・子機、２・・・親機、ｉａ、 ２ｂ・・・送
信部、１ｂ。
２ａ・・・受信部、７．１９・・・振幅変調器、９，２
１・・・搬送波発振器、２３・・・復調回路、２５・・
・音声増幅器、２７・・・制御回路。Fig. 1 is a block diagram of a conventional intercom device with a portable monitor TV, Fig. 2 is a block diagram of the intercom device with a portable monitor TV of the present invention, and Fig. 3 shows the specific configuration of the control circuit in Fig. 2. FIG. 1...Slave unit, 2...Base unit, ia, 2b...Transmission unit, 1b. 2a... Receiving section, 7.19... Amplitude modulator, 9,2
1... Carrier wave oscillator, 23... Demodulation circuit, 25...
-Audio amplifier, 27...control circuit.
Claims (1)
話回路を形成した搬送式インターホン装置において、前
記子機の受信部は、前記親機の送信部から送信されてき
た音声信号によって変調された搬送波から音声を取り出
す復調回路と、前記変調された搬送波の有無に応じて音
声増幅器をオン、オフする制御回路とからなることを特
徴とする搬送式インターホン装置。In a carrier type intercom device in which a transmitter and a receiver are respectively provided in a base unit and a slave unit to form a communication circuit, the receiver of the slave unit is modulated by an audio signal transmitted from the transmitter of the base unit. 1. A carrier-type intercom device comprising: a demodulation circuit that extracts audio from a modulated carrier wave; and a control circuit that turns on and off an audio amplifier depending on the presence or absence of the modulated carrier wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14248482U JPS5948168U (en) | 1982-09-20 | 1982-09-20 | Transportable intercom device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14248482U JPS5948168U (en) | 1982-09-20 | 1982-09-20 | Transportable intercom device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5948168U true JPS5948168U (en) | 1984-03-30 |
Family
ID=30318357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14248482U Pending JPS5948168U (en) | 1982-09-20 | 1982-09-20 | Transportable intercom device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5948168U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4924886U (en) * | 1972-06-09 | 1974-03-02 |
-
1982
- 1982-09-20 JP JP14248482U patent/JPS5948168U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4924886U (en) * | 1972-06-09 | 1974-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5948168U (en) | Transportable intercom device | |
| JPS599659U (en) | Simultaneous transmitting and receiving device | |
| JPS617149U (en) | Transmitter/receiver for antenna direction adjustment | |
| JPS59127351U (en) | wireless communication device | |
| JPS59132265U (en) | TSL equipment | |
| JPS5911543U (en) | Weak transmission output wireless transmitter/receiver | |
| JPS59106279U (en) | remote control device | |
| JPS58172243U (en) | transmitter/receiver transmitter | |
| JPH01133855U (en) | ||
| JPS59149750U (en) | signal isolator | |
| JPS59147345U (en) | transmitting device | |
| JPS60101885U (en) | electric valve system | |
| JPS5929858U (en) | 2-wire transmission circuit | |
| JPS5957053U (en) | information transmission device | |
| JPS58178746U (en) | transceiver | |
| JPS615050U (en) | Serial data transmitter/receiver | |
| JPS5864148U (en) | radio community reception device | |
| JPS60192548U (en) | Transmitting/receiving device | |
| JPS6448788U (en) | ||
| JPS583645U (en) | transmitter | |
| JPS6115849U (en) | telephone equipment | |
| JPS5826246U (en) | information transmission device | |
| JPS60183543U (en) | load control device | |
| JPS58101552U (en) | Transmitting/receiving device | |
| JPS59140586U (en) | signal mixing device |