JPS57116488A - Color television camera - Google Patents

Color television camera

Info

Publication number
JPS57116488A
JPS57116488A JP56002075A JP207581A JPS57116488A JP S57116488 A JPS57116488 A JP S57116488A JP 56002075 A JP56002075 A JP 56002075A JP 207581 A JP207581 A JP 207581A JP S57116488 A JPS57116488 A JP S57116488A
Authority
JP
Japan
Prior art keywords
signal
extracts
band
bpf6
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.)
Pending
Application number
JP56002075A
Other languages
Japanese (ja)
Inventor
Saburo Nobutoki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56002075A priority Critical patent/JPS57116488A/en
Publication of JPS57116488A publication Critical patent/JPS57116488A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
    • H04N23/12—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with one sensor only

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Image Signal Generators (AREA)

Abstract

PURPOSE:To reduce or eliminate false signals effectively without spoiling the fidelity of color reproduction, color resolution, etc., by permitting an electric circuit to detect and correct the generation of a false chrominance signal when the frequency component of a signal based upon the luminance difference of an object is within a chrominance-signal carrier band. CONSTITUTION:The output of an image pickup tube 1 which has an incorporated stripe filter is amplified by a preamplifier 2, and an LPF3 extracts a luminance signal Y from its amplification output. Further, a BPF6 for control-signal extraction extracts a high-frequency band signal close to the extraction band of the LPF3, and the output terminal of the BPF6 is connected to an arithmetic circuit 7 which generates a value proportional to a smoothed signal by detecting the extraction output. A BPF4, on the other hand, extracts a signal with a band next to the frequency band that the BPF6 extracts, and its extracted signal is inputted to a chrominance signal detecting circuit 5. The arithmetic circuit 7 is controlled by a signal from the circuit 5 to reduce or eliminate false signals effectively without spoiling the fidelity of color reproduction, color resolution, etc.
JP56002075A 1981-01-12 1981-01-12 Color television camera Pending JPS57116488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56002075A JPS57116488A (en) 1981-01-12 1981-01-12 Color television camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56002075A JPS57116488A (en) 1981-01-12 1981-01-12 Color television camera

Publications (1)

Publication Number Publication Date
JPS57116488A true JPS57116488A (en) 1982-07-20

Family

ID=11519219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56002075A Pending JPS57116488A (en) 1981-01-12 1981-01-12 Color television camera

Country Status (1)

Country Link
JP (1) JPS57116488A (en)

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