JPS55135479A - Television picture receiver for still picture - Google Patents

Television picture receiver for still picture

Info

Publication number
JPS55135479A
JPS55135479A JP4306479A JP4306479A JPS55135479A JP S55135479 A JPS55135479 A JP S55135479A JP 4306479 A JP4306479 A JP 4306479A JP 4306479 A JP4306479 A JP 4306479A JP S55135479 A JPS55135479 A JP S55135479A
Authority
JP
Japan
Prior art keywords
picture
clock
units
signal
reproduction
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
JP4306479A
Other languages
Japanese (ja)
Inventor
Kiyoshi Hiramatsu
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 JP4306479A priority Critical patent/JPS55135479A/en
Publication of JPS55135479A publication Critical patent/JPS55135479A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/002—Special television systems not provided for by H04N7/007 - H04N7/18

Abstract

PURPOSE:To enhance the processing capacity of the microcomputer part by selecting the frequency of the clock signal at the microcomputer part regardless of the reproducing action of the picture image. CONSTITUTION:The 1st and 2nd auxiliary memory units 7 and 8 feature the memory capacity corresponding to the picture element number of the horizontal scanning line, for example, the memory capacity of 248 bits. Switches 9 and 10 connect units 7 and 8 alternately to main memory unit 4 and picture reproduction part 6 respectively. And the 1st and 2nd address switch circuits 11 and 12 supply the clock signals in switching to units 7 and 8. Switch control circuit 13 is driven by the horizontal synchronous signal to give the alternate switching to switches 9 and 10 with every horizontal period. Clock synchronous circuit 14 synchronizes with the TV signal, and picture reproducing clock generator 15 generates the clock signal featuring the frequency in accordance with the picture element number of the still picture which is displayed at picture reproduction part 6. Thus the independent execution is secured between the reading of information out of the main memory unit and the reproduction of the still picture at part 6.
JP4306479A 1979-04-11 1979-04-11 Television picture receiver for still picture Pending JPS55135479A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4306479A JPS55135479A (en) 1979-04-11 1979-04-11 Television picture receiver for still picture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4306479A JPS55135479A (en) 1979-04-11 1979-04-11 Television picture receiver for still picture

Publications (1)

Publication Number Publication Date
JPS55135479A true JPS55135479A (en) 1980-10-22

Family

ID=12653419

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4306479A Pending JPS55135479A (en) 1979-04-11 1979-04-11 Television picture receiver for still picture

Country Status (1)

Country Link
JP (1) JPS55135479A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5063847A (en) * 1973-10-09 1975-05-30
JPS50104523A (en) * 1974-01-16 1975-08-18
JPS5424532A (en) * 1977-07-27 1979-02-23 Hitachi Ltd Reception unit for still picture signal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5063847A (en) * 1973-10-09 1975-05-30
JPS50104523A (en) * 1974-01-16 1975-08-18
JPS5424532A (en) * 1977-07-27 1979-02-23 Hitachi Ltd Reception unit for still picture signal

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