GB8527361D0 - Teletext decoder - Google Patents

Teletext decoder

Info

Publication number
GB8527361D0
GB8527361D0 GB858527361A GB8527361A GB8527361D0 GB 8527361 D0 GB8527361 D0 GB 8527361D0 GB 858527361 A GB858527361 A GB 858527361A GB 8527361 A GB8527361 A GB 8527361A GB 8527361 D0 GB8527361 D0 GB 8527361D0
Authority
GB
United Kingdom
Prior art keywords
teletext decoder
teletext
decoder
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
GB858527361A
Other versions
GB2164812B (en
GB2164812A (en
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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
Priority claimed from JP57117553A external-priority patent/JPS598485A/en
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB8527361D0 publication Critical patent/GB8527361D0/en
Publication of GB2164812A publication Critical patent/GB2164812A/en
Application granted granted Critical
Publication of GB2164812B publication Critical patent/GB2164812B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0882—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of character code signals, e.g. for teletext
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding
    • H03K5/082—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold
GB08527361A 1982-07-05 1983-07-05 Teletext decoder with slicing circuit Expired GB2164812B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP57117553A JPS598485A (en) 1982-07-05 1982-07-05 Character multiplex broadcast receiver
GB08318129A GB2126459B (en) 1982-07-05 1983-07-05 Teletext decoder

Publications (3)

Publication Number Publication Date
GB8527361D0 true GB8527361D0 (en) 1985-12-11
GB2164812A GB2164812A (en) 1986-03-26
GB2164812B GB2164812B (en) 1986-12-10

Family

ID=26286544

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08527361A Expired GB2164812B (en) 1982-07-05 1983-07-05 Teletext decoder with slicing circuit

Country Status (1)

Country Link
GB (1) GB2164812B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3780637D1 (en) * 1987-09-08 1992-08-27 Itt Ind Gmbh Deutsche DIGITAL DATA SLICER CIRCUIT FOR TELETEX SIGNALS.
JPH11234349A (en) * 1998-02-17 1999-08-27 Fujitsu Ltd Burst pulse width compensation circuit and pulse width compensation method

Also Published As

Publication number Publication date
GB2164812B (en) 1986-12-10
GB2164812A (en) 1986-03-26

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19960628

PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960705