JPS5539472A - Double-screen television receiver - Google Patents

Double-screen television receiver

Info

Publication number
JPS5539472A
JPS5539472A JP11331678A JP11331678A JPS5539472A JP S5539472 A JPS5539472 A JP S5539472A JP 11331678 A JP11331678 A JP 11331678A JP 11331678 A JP11331678 A JP 11331678A JP S5539472 A JPS5539472 A JP S5539472A
Authority
JP
Japan
Prior art keywords
field memory
screen
line
minor
reading
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
JP11331678A
Other languages
Japanese (ja)
Other versions
JPS6242555B2 (en
Inventor
Takuya Imaide
Tomomitsu Azeyanagi
Michio Masuda
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 JP11331678A priority Critical patent/JPS5539472A/en
Priority to US06/074,761 priority patent/US4249213A/en
Priority to DE2937133A priority patent/DE2937133C2/en
Publication of JPS5539472A publication Critical patent/JPS5539472A/en
Publication of JPS6242555B2 publication Critical patent/JPS6242555B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Transforming Electric Information Into Light Information (AREA)

Abstract

PURPOSE: To realize the insertion of the minor screen with the 1-field memory capacity by giving the 1-line sampling with every horizontal scan period to the video signals of the minor screen to write them into the 1-field memory after eliminating the front and rear ends and then reading these signals in a fixed time to insert them into the fixed position of the master screen.
CONSTITUTION: For video signal I of the minor screen, three lines are defined one group, and one of the three lines is sampled to be written into 1-field memory 41. In this case, for example, only 3/4 line is written by eliminating the front and rear ends of one line such as the horizontal flyback time or the like. Then the minor screen signals written into the 1-field memory are read out in the time of the 1/4 line to secure the triple clock frequency and at the fixed insertion position of the master screen. Thus if the reading is started immediately after the writing, no overlap is caused to the 1-field memory between the writing and the reading. Thus the insertion becomes possible for the minor screen with the 1-field memory capacity.
COPYRIGHT: (C)1980,JPO&Japio
JP11331678A 1978-09-14 1978-09-14 Double-screen television receiver Granted JPS5539472A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP11331678A JPS5539472A (en) 1978-09-14 1978-09-14 Double-screen television receiver
US06/074,761 US4249213A (en) 1978-09-14 1979-09-11 Picture-in-picture television receiver
DE2937133A DE2937133C2 (en) 1978-09-14 1979-09-13 Picture-in-picture television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11331678A JPS5539472A (en) 1978-09-14 1978-09-14 Double-screen television receiver

Publications (2)

Publication Number Publication Date
JPS5539472A true JPS5539472A (en) 1980-03-19
JPS6242555B2 JPS6242555B2 (en) 1987-09-09

Family

ID=14609131

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11331678A Granted JPS5539472A (en) 1978-09-14 1978-09-14 Double-screen television receiver

Country Status (1)

Country Link
JP (1) JPS5539472A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5713868A (en) * 1980-06-27 1982-01-23 Hitachi Ltd Two-screen television receiver
US4796089A (en) * 1985-12-17 1989-01-03 Matsushita Electric Industrial Co., Ltd. Television receiver display apparatus having multi-image display capability
JPH02224483A (en) * 1989-02-27 1990-09-06 Pioneer Electron Corp Picture display system
JPH0370712A (en) * 1989-08-09 1991-03-26 Toshiomi Suzuki Traffic utilization card and traffic utilization system
US5111297A (en) * 1989-08-04 1992-05-05 Matsushita Electric Industrial Co., Ltd. Picture-in-picture double-scanning television receiver

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06127583A (en) * 1992-10-21 1994-05-10 Mitsubishi Electric Corp Transfer tool for semiconductor device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5713868A (en) * 1980-06-27 1982-01-23 Hitachi Ltd Two-screen television receiver
US4796089A (en) * 1985-12-17 1989-01-03 Matsushita Electric Industrial Co., Ltd. Television receiver display apparatus having multi-image display capability
JPH02224483A (en) * 1989-02-27 1990-09-06 Pioneer Electron Corp Picture display system
US5111297A (en) * 1989-08-04 1992-05-05 Matsushita Electric Industrial Co., Ltd. Picture-in-picture double-scanning television receiver
JPH0370712A (en) * 1989-08-09 1991-03-26 Toshiomi Suzuki Traffic utilization card and traffic utilization system

Also Published As

Publication number Publication date
JPS6242555B2 (en) 1987-09-09

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