JPS56114444A - Amplitude modulation receiver - Google Patents

Amplitude modulation receiver

Info

Publication number
JPS56114444A
JPS56114444A JP1705980A JP1705980A JPS56114444A JP S56114444 A JPS56114444 A JP S56114444A JP 1705980 A JP1705980 A JP 1705980A JP 1705980 A JP1705980 A JP 1705980A JP S56114444 A JPS56114444 A JP S56114444A
Authority
JP
Japan
Prior art keywords
band
upper side
lower side
receiving
circuit
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
Application number
JP1705980A
Other languages
Japanese (ja)
Other versions
JPS6261179B2 (en
Inventor
Norio Numata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP1705980A priority Critical patent/JPS56114444A/en
Publication of JPS56114444A publication Critical patent/JPS56114444A/en
Publication of JPS6261179B2 publication Critical patent/JPS6261179B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)

Abstract

PURPOSE:To always obtain a satisfactory receiving condition without being affected by an interference such as beat from an adjacent central office, by automatically switching the upper side-band and the lower side-band in accordance with a receiving condition. CONSTITUTION:The output terminal which can obtain a lower side-band detection signal of the matrix circuit 11 is connected to the detection circuit 21 through the band-pass filter 20 for lower side-band, also the output terminal which can obtain an upper side-band detection signal of the circuit 11 is connected to the detection circuit 23 through the band-pass filter 22 for upper side-band, the output sides of the detection circuits 21, 23 are connected to each base of the transistors 24, 25 constituting the differential amplifiers, respectively, each collector is connected to the positive power source terminal +B through the resistor 26 and the light emission diode 27 for displaying the upper side-band receiving, and the resistor 28 and the light emission diode 29 for displaying the lower side-band receiving, and the emitters of the transistors 24, 25 are grounded through the constant-current source 30.
JP1705980A 1980-02-14 1980-02-14 Amplitude modulation receiver Granted JPS56114444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1705980A JPS56114444A (en) 1980-02-14 1980-02-14 Amplitude modulation receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1705980A JPS56114444A (en) 1980-02-14 1980-02-14 Amplitude modulation receiver

Publications (2)

Publication Number Publication Date
JPS56114444A true JPS56114444A (en) 1981-09-09
JPS6261179B2 JPS6261179B2 (en) 1987-12-19

Family

ID=11933406

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1705980A Granted JPS56114444A (en) 1980-02-14 1980-02-14 Amplitude modulation receiver

Country Status (1)

Country Link
JP (1) JPS56114444A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5177109A (en) * 1974-12-27 1976-07-03 Sharp Kk JUSHINKI
JPS5315715U (en) * 1976-07-20 1978-02-09

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5315715B2 (en) * 1973-10-12 1978-05-26

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5177109A (en) * 1974-12-27 1976-07-03 Sharp Kk JUSHINKI
JPS5315715U (en) * 1976-07-20 1978-02-09

Also Published As

Publication number Publication date
JPS6261179B2 (en) 1987-12-19

Similar Documents

Publication Publication Date Title
ES8202459A1 (en) Class "B" type amplifier
JPS56114444A (en) Amplitude modulation receiver
ES8206844A1 (en) Differential-type traversing-time ions pick-up head.
JPS55117971A (en) Level indication circuit
JPS56164966A (en) Electric field intensity display device
JPS56166613A (en) Voltage to current converting circuit
JPS5436788A (en) Automatic analyzer
JPS54122012A (en) Ringing-signal detection circuit
JPS5769428A (en) Power current circuit
JPS57171854A (en) Laser diode driving circuit
JPS5792883A (en) Semiconductor laser driving circuit
JPS56137332A (en) Optical not circuit
JPS53117356A (en) Diode bias circuit
JPS56168478A (en) Switching device of multiplex broadcasting
JPS6468019A (en) Level converting circuit
JPS5765944A (en) Bipolar signal receiving circuit
JPS55151806A (en) Signal level control circuit
JPS56116346A (en) Fm stereo demodulation circuit
JPS5510220A (en) Divider circuit
JPS5671312A (en) Current miller circuit
JPS57145413A (en) Modulating circuit
JPS57190434A (en) Photodetecting circuit
JPS52132619A (en) Signal meter driving circuit for am radio receiver
JPS57139871A (en) Multiplying circuit
JPS5466877A (en) Light emitting diode level meter circuit