JPS54118727A - Noise level detector circuit - Google Patents

Noise level detector circuit

Info

Publication number
JPS54118727A
JPS54118727A JP2685778A JP2685778A JPS54118727A JP S54118727 A JPS54118727 A JP S54118727A JP 2685778 A JP2685778 A JP 2685778A JP 2685778 A JP2685778 A JP 2685778A JP S54118727 A JPS54118727 A JP S54118727A
Authority
JP
Japan
Prior art keywords
circuit
video signal
correlation
output
noise level
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
JP2685778A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6154317B2 (enrdf_load_stackoverflow
Inventor
Yutaka Ito
Kazuo Yajima
Yoshiteru Iwanaga
Hiroshi Takahashi
Masao Inaba
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.)
NEC Corp
Tokyo Broadcasting System Inc TBS
Original Assignee
NEC Corp
Tokyo Broadcasting System Inc TBS
Nippon Electric 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 NEC Corp, Tokyo Broadcasting System Inc TBS, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2685778A priority Critical patent/JPS54118727A/ja
Priority to GB08213209A priority patent/GB2102236B/en
Priority to GB08213210A priority patent/GB2102651B/en
Priority to GB7907699A priority patent/GB2020508B/en
Priority to FR7905906A priority patent/FR2419637A1/fr
Priority to CA000322983A priority patent/CA1117650A/en
Priority to US06/018,474 priority patent/US4242704A/en
Publication of JPS54118727A publication Critical patent/JPS54118727A/ja
Publication of JPS6154317B2 publication Critical patent/JPS6154317B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Picture Signal Circuits (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
JP2685778A 1978-03-08 1978-03-08 Noise level detector circuit Granted JPS54118727A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2685778A JPS54118727A (en) 1978-03-08 1978-03-08 Noise level detector circuit
GB08213209A GB2102236B (en) 1978-03-08 1979-03-05 Noise reduction system for colour television signal
GB08213210A GB2102651B (en) 1978-03-08 1979-03-05 Noise reduction system for color television signal
GB7907699A GB2020508B (en) 1978-03-08 1979-03-05 Noise reduction system for colour television signal
FR7905906A FR2419637A1 (fr) 1978-03-08 1979-03-07 Dispositif de reduction de bruit pour signaux de television en couleurs
CA000322983A CA1117650A (en) 1978-03-08 1979-03-08 Noise reduction system for color television signal
US06/018,474 US4242704A (en) 1978-03-08 1979-03-08 Noise reduction system for color television signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2685778A JPS54118727A (en) 1978-03-08 1978-03-08 Noise level detector circuit

Publications (2)

Publication Number Publication Date
JPS54118727A true JPS54118727A (en) 1979-09-14
JPS6154317B2 JPS6154317B2 (enrdf_load_stackoverflow) 1986-11-21

Family

ID=12204940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2685778A Granted JPS54118727A (en) 1978-03-08 1978-03-08 Noise level detector circuit

Country Status (1)

Country Link
JP (1) JPS54118727A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58156270A (ja) * 1982-03-11 1983-09-17 Mitsubishi Electric Corp 信号処理方法
JPS63132518A (ja) * 1986-04-11 1988-06-04 ビデオ・パテンツ・リミテッド ノイズ調整型循環フイルタ
US6169583B1 (en) 1996-05-24 2001-01-02 Matsushita Electric Industrial Co., Ltd. Method and circuit to determine a noise value that corresponds to the noise in a signal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58156270A (ja) * 1982-03-11 1983-09-17 Mitsubishi Electric Corp 信号処理方法
JPS63132518A (ja) * 1986-04-11 1988-06-04 ビデオ・パテンツ・リミテッド ノイズ調整型循環フイルタ
US6169583B1 (en) 1996-05-24 2001-01-02 Matsushita Electric Industrial Co., Ltd. Method and circuit to determine a noise value that corresponds to the noise in a signal

Also Published As

Publication number Publication date
JPS6154317B2 (enrdf_load_stackoverflow) 1986-11-21

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