JPS5530257A - Noise suppressing receiver - Google Patents
Noise suppressing receiverInfo
- Publication number
- JPS5530257A JPS5530257A JP10364578A JP10364578A JPS5530257A JP S5530257 A JPS5530257 A JP S5530257A JP 10364578 A JP10364578 A JP 10364578A JP 10364578 A JP10364578 A JP 10364578A JP S5530257 A JPS5530257 A JP S5530257A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- idc
- duplexer
- transmission
- reception
- 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.)
- Granted
Links
Landscapes
- Transceivers (AREA)
- Noise Elimination (AREA)
Abstract
PURPOSE: To make it possible to suppress an impulsive noise and white noise effectively in reception by enabling an IDC (instantaneous deviation control) circuit to serve as an IDC circuit in transmission and as a noise suppression circuit in reception and also to transmit and receive signals.
CONSTITUTION: In transmission, audio duplexers 10 and 11 are set to the A side; namely, the input side of the IDC circuit is connected to the microphone circuit and the output side to the transmission part input. In reception, on the other hand, duplexers 10 and 11 are at the B side; namely, the input side of the IDC circuit is connected to the output of the reception part and its output side is to the input of the sound amplifier. The switching operations of duplexers 10 and 11 are performed by a press-to-talk signal. The IDC circuit operates as an IDC circuit being connected to the A side and as a noise circuit by being connected to the B side. Now, an arrival radio wave passes through duplexer 10 and IDC circuit 4 suppresses an impulsive noise of large amplitude before it is supplied to speaker 9 by way of duplexer 11. In transmission, on the other hand, the output of microphone 5 is passed through duplexer 10, circuit 4 and duplexer 11 and becomes modulated and transmitted waves in the transmission part before being supplied to antenna 1.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10364578A JPS5530257A (en) | 1978-08-25 | 1978-08-25 | Noise suppressing receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10364578A JPS5530257A (en) | 1978-08-25 | 1978-08-25 | Noise suppressing receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5530257A true JPS5530257A (en) | 1980-03-04 |
JPS616578B2 JPS616578B2 (en) | 1986-02-27 |
Family
ID=14359502
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10364578A Granted JPS5530257A (en) | 1978-08-25 | 1978-08-25 | Noise suppressing receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5530257A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61263329A (en) * | 1985-05-17 | 1986-11-21 | Matsushita Electric Ind Co Ltd | Radio transmitter-receiver |
JPS61265930A (en) * | 1985-05-21 | 1986-11-25 | Matsushita Electric Ind Co Ltd | Radio transmission and reception equipment |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01152165U (en) * | 1988-04-12 | 1989-10-20 |
-
1978
- 1978-08-25 JP JP10364578A patent/JPS5530257A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61263329A (en) * | 1985-05-17 | 1986-11-21 | Matsushita Electric Ind Co Ltd | Radio transmitter-receiver |
JPS61265930A (en) * | 1985-05-21 | 1986-11-25 | Matsushita Electric Ind Co Ltd | Radio transmission and reception equipment |
Also Published As
Publication number | Publication date |
---|---|
JPS616578B2 (en) | 1986-02-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0364036A3 (en) | Continuously transmitting and receiving radar | |
KR880004300A (en) | Ultrasonic Detector for Visually Impaired and Signal Processing Method | |
US4392243A (en) | Transceiver having interphone system | |
JPS5530257A (en) | Noise suppressing receiver | |
JPS5631235A (en) | Active antenna system | |
JPS57202138A (en) | Headphone concert system | |
JPS5770000A (en) | Stereo playback device | |
JPS56103514A (en) | Filter circuit | |
JPS55134554A (en) | Radio receiver | |
JPS5487415A (en) | Cb transceiver | |
JPS5772434A (en) | Communication system | |
SU718946A1 (en) | Sound amplification device | |
JPS57202139A (en) | Concert system | |
JPS57202198A (en) | Portable stereo audio equipment | |
JPS5672548A (en) | Space diversity receiving system | |
JPS6478035A (en) | Receiver | |
JPS5555628A (en) | Squelch system in fm receiver | |
JPS5791040A (en) | Radio communication device | |
JPS5880934A (en) | Frequency conversion controlling method of communication equipment | |
JPS5451559A (en) | Mimic target | |
JPH037164B2 (en) | ||
FR2280264A1 (en) | FM relay transmitter for portable appts. - has IF amplifier followed by HF amplifier stage | |
JPS55143878A (en) | Video intermediate frequency signal processing unit | |
JPS5525258A (en) | Acoustic apparatus | |
JPH06181494A (en) | Cordless telephone set |