JPS54139331A - Recording and reproducing system of zooming picture - Google Patents

Recording and reproducing system of zooming picture

Info

Publication number
JPS54139331A
JPS54139331A JP4648778A JP4648778A JPS54139331A JP S54139331 A JPS54139331 A JP S54139331A JP 4648778 A JP4648778 A JP 4648778A JP 4648778 A JP4648778 A JP 4648778A JP S54139331 A JPS54139331 A JP S54139331A
Authority
JP
Japan
Prior art keywords
address
memory
read
picture
output
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
JP4648778A
Other languages
Japanese (ja)
Inventor
Seishi Kageyama
Masaru Konno
Susumu Yamaguchi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4648778A priority Critical patent/JPS54139331A/en
Publication of JPS54139331A publication Critical patent/JPS54139331A/en
Pending legal-status Critical Current

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  • Studio Circuits (AREA)

Abstract

PURPOSE: To prevent the generation of memory passing phenomena by reading data from the one-field memory which stores zooming processing results and causing the center of addresses to agree with the center of storage addresses of a reduced or extended picture.
CONSTITUTION: The output of frame synchronizer FS3 having a storage capacity larger than one-field components is subjected to reduction or extension zooming processing in 5 and is stored in memory 7 having a memory capacity of one-field components. At storage start, start position A-a is given from the output of start address 43 by picture center position corresponding address A from positioner corresponding address generator circuit 41 and reductin or extension address a from fader corresponding address generator circuit 42, and data is written from W address 44 in memory 7. Output B of read address 45 and address A are compared with each other in 46; and in case of agreement, data in FS3 is read through set address control circuit 47 and read address 48, and the timing address is set to 0, so that read/write passing phenomena of memory 7 can be prevented, and a picture quality deterioration can be prevented.
COPYRIGHT: (C)1979,JPO&Japio
JP4648778A 1978-04-21 1978-04-21 Recording and reproducing system of zooming picture Pending JPS54139331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4648778A JPS54139331A (en) 1978-04-21 1978-04-21 Recording and reproducing system of zooming picture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4648778A JPS54139331A (en) 1978-04-21 1978-04-21 Recording and reproducing system of zooming picture

Publications (1)

Publication Number Publication Date
JPS54139331A true JPS54139331A (en) 1979-10-29

Family

ID=12748559

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4648778A Pending JPS54139331A (en) 1978-04-21 1978-04-21 Recording and reproducing system of zooming picture

Country Status (1)

Country Link
JP (1) JPS54139331A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5718168A (en) * 1980-07-09 1982-01-29 Toshiba Corp Key signal generation device
JPS5838076A (en) * 1981-08-28 1983-03-05 Toshiba Corp Key signal delaying device for special effect device
JPS6369383A (en) * 1986-09-11 1988-03-29 Fuji Photo Film Co Ltd Zoom electronic camera
JPS6395772A (en) * 1986-10-09 1988-04-26 Konica Corp Picture processing unit capable of magnifying and reducing
JPS6395775A (en) * 1986-10-09 1988-04-26 Konica Corp Picture processing unit capable of magnifying and reducing
JPS63167565A (en) * 1986-12-27 1988-07-11 Konica Corp Image processor capable of designating recording position
JPH01272268A (en) * 1988-04-25 1989-10-31 Hitachi Ltd Video signal processing circuit capable of enlarging display

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5718168A (en) * 1980-07-09 1982-01-29 Toshiba Corp Key signal generation device
JPS5838076A (en) * 1981-08-28 1983-03-05 Toshiba Corp Key signal delaying device for special effect device
JPS6369383A (en) * 1986-09-11 1988-03-29 Fuji Photo Film Co Ltd Zoom electronic camera
JPH0563069B2 (en) * 1986-09-11 1993-09-09 Fuji Photo Film Co Ltd
JPS6395772A (en) * 1986-10-09 1988-04-26 Konica Corp Picture processing unit capable of magnifying and reducing
JPS6395775A (en) * 1986-10-09 1988-04-26 Konica Corp Picture processing unit capable of magnifying and reducing
JPH0567106B2 (en) * 1986-10-09 1993-09-24 Konishiroku Photo Ind
JPS63167565A (en) * 1986-12-27 1988-07-11 Konica Corp Image processor capable of designating recording position
JPH0567107B2 (en) * 1986-12-27 1993-09-24 Konishiroku Photo Ind
JPH01272268A (en) * 1988-04-25 1989-10-31 Hitachi Ltd Video signal processing circuit capable of enlarging display

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