JPS5765068A - Television receiver - Google Patents

Television receiver

Info

Publication number
JPS5765068A
JPS5765068A JP55139760A JP13976080A JPS5765068A JP S5765068 A JPS5765068 A JP S5765068A JP 55139760 A JP55139760 A JP 55139760A JP 13976080 A JP13976080 A JP 13976080A JP S5765068 A JPS5765068 A JP S5765068A
Authority
JP
Japan
Prior art keywords
switch
scanning line
delay circuit
switched
signal
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
JP55139760A
Other languages
Japanese (ja)
Inventor
Hitoshi Maekawa
Michitaka Osawa
Shuzo Matsumoto
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 JP55139760A priority Critical patent/JPS5765068A/en
Publication of JPS5765068A publication Critical patent/JPS5765068A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H04N7/012—Conversion between an interlaced and a progressive signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Graphics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)

Abstract

PURPOSE:To supply a TV receiver of large-sized screen with low price, by realizing picture reproduction having almost twice as the scanning line number of a TV signal without using one field delay circuit. CONSTITUTION:A signal in odd number field is applied to an input IN and a switch 51 is selected to the A side. When a switch 52 is selected to the A side in the timing of the 1st horizontal scanning line signal appeared to the output of a H/2 delay circuit 26 via a 1H delay circuit 32, the next scanning line signal appears at the output of a H/2 delay circuit 25. Two scanning line signals are compressed for time by 1/2 at T/2 compression circuits 34, 35 and scanning lines between two scanning lines are obtained at an output OUT via addition circuits 52, 51. When a half the period TH of the scanning line elapses, the switch 52 is selected to the B side. Hereafter, the switch 52 is switched to A and B every TH/2 alternately. A switch 51 is switched to the B side and a switch 53 is switched alternately A to/from B in the period of TH/2.
JP55139760A 1980-10-08 1980-10-08 Television receiver Pending JPS5765068A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55139760A JPS5765068A (en) 1980-10-08 1980-10-08 Television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55139760A JPS5765068A (en) 1980-10-08 1980-10-08 Television receiver

Publications (1)

Publication Number Publication Date
JPS5765068A true JPS5765068A (en) 1982-04-20

Family

ID=15252743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55139760A Pending JPS5765068A (en) 1980-10-08 1980-10-08 Television receiver

Country Status (1)

Country Link
JP (1) JPS5765068A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990006038A1 (en) * 1988-11-16 1990-05-31 Scientific-Atlanta, Inc. High definition b-mac television signal transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990006038A1 (en) * 1988-11-16 1990-05-31 Scientific-Atlanta, Inc. High definition b-mac television signal transmission system

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