JPS5589909A - Magnetic recording and reproducing unit - Google Patents

Magnetic recording and reproducing unit

Info

Publication number
JPS5589909A
JPS5589909A JP16435178A JP16435178A JPS5589909A JP S5589909 A JPS5589909 A JP S5589909A JP 16435178 A JP16435178 A JP 16435178A JP 16435178 A JP16435178 A JP 16435178A JP S5589909 A JPS5589909 A JP S5589909A
Authority
JP
Japan
Prior art keywords
frequency
deterioration
noise
magnetic recording
reproducing unit
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
JP16435178A
Other languages
Japanese (ja)
Other versions
JPS6120927B2 (en
Inventor
Akio Kuroe
Ryuji Sugita
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP16435178A priority Critical patent/JPS5589909A/en
Publication of JPS5589909A publication Critical patent/JPS5589909A/en
Publication of JPS6120927B2 publication Critical patent/JPS6120927B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE: To prevent the deterioration in SN ratio of video signal due to slide noise, by inserting the LPF having the cut-off frequency in specific number of times the carrier frequency between the reproduced amplifier and the limiter.
CONSTITUTION: In the magnetic recording and reproducing unit recording signal in frequency or phase modulation, the level of noise component of slide noise is eminent at the frequency twice or more the carrier frequency fc and this is the cause of the deterioration of video S/N. Accordingly, by providing the LPF 34 rejecting the noise component of outside the signal transmission band, i.e., 2fc±10% or more between the reproduced amplifier 7 and the limiter 9, the effect of the slide noise can remarkably be suppressed to prevent the deterioration of S/N of video signal and to obtain excellent picture.
COPYRIGHT: (C)1980,JPO&Japio
JP16435178A 1978-12-27 1978-12-27 Magnetic recording and reproducing unit Granted JPS5589909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16435178A JPS5589909A (en) 1978-12-27 1978-12-27 Magnetic recording and reproducing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16435178A JPS5589909A (en) 1978-12-27 1978-12-27 Magnetic recording and reproducing unit

Publications (2)

Publication Number Publication Date
JPS5589909A true JPS5589909A (en) 1980-07-08
JPS6120927B2 JPS6120927B2 (en) 1986-05-24

Family

ID=15791501

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16435178A Granted JPS5589909A (en) 1978-12-27 1978-12-27 Magnetic recording and reproducing unit

Country Status (1)

Country Link
JP (1) JPS5589909A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59118112U (en) * 1983-01-28 1984-08-09 アルパイン株式会社 magnetic recording and reproducing device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4991626A (en) * 1972-12-31 1974-09-02
JPS5210113A (en) * 1976-01-29 1977-01-26 Victor Co Of Japan Ltd Amplitude limiter
JPS533730A (en) * 1976-06-30 1978-01-13 Matsushita Electric Ind Co Ltd Recording and reproducing device of color television signal
JPS53108915U (en) * 1977-02-03 1978-08-31
JPS53141606A (en) * 1977-05-16 1978-12-09 Sony Corp Reproducer
JPS5584006A (en) * 1978-12-18 1980-06-24 Sony Corp Recording method for information signal

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4991626A (en) * 1972-12-31 1974-09-02
JPS5210113A (en) * 1976-01-29 1977-01-26 Victor Co Of Japan Ltd Amplitude limiter
JPS533730A (en) * 1976-06-30 1978-01-13 Matsushita Electric Ind Co Ltd Recording and reproducing device of color television signal
JPS53108915U (en) * 1977-02-03 1978-08-31
JPS53141606A (en) * 1977-05-16 1978-12-09 Sony Corp Reproducer
JPS5584006A (en) * 1978-12-18 1980-06-24 Sony Corp Recording method for information signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59118112U (en) * 1983-01-28 1984-08-09 アルパイン株式会社 magnetic recording and reproducing device

Also Published As

Publication number Publication date
JPS6120927B2 (en) 1986-05-24

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