GB1017081A - A television receiver circuit arrangement - Google Patents

A television receiver circuit arrangement

Info

Publication number
GB1017081A
GB1017081A GB3765262A GB3765262A GB1017081A GB 1017081 A GB1017081 A GB 1017081A GB 3765262 A GB3765262 A GB 3765262A GB 3765262 A GB3765262 A GB 3765262A GB 1017081 A GB1017081 A GB 1017081A
Authority
GB
United Kingdom
Prior art keywords
circuit
resistor
oscillator
pulse train
frame
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.)
Expired
Application number
GB3765262A
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.)
Blaupunkt Werke GmbH
Original Assignee
Blaupunkt Werke GmbH
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 Blaupunkt Werke GmbH filed Critical Blaupunkt Werke GmbH
Publication of GB1017081A publication Critical patent/GB1017081A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals
    • H04N5/10—Separation of line synchronising signal from frame synchronising signal or vice versa
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/26—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor
    • H03K4/39—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as an amplifier
    • H03K4/43—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as an amplifier combined with means for generating the driving pulses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
    • H04N5/126—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal indirectly commands a frequency generator

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)

Abstract

1,017,081. Pulse circuits. BLANKPUMKTWERKE G.m.b.H. Oct. 4, 1962 [Oct. 10, 1961], No. 37652/62. Heading H3P. In a television receiver in which the frame synchronizing pulse is separated from the composite synchronizing pulse train by an integrator circuit 1-4 and applied via an amplifier stage 7 to synchronize the frame blocking oscillator 23, the anode circuit of the amplifier includes a resonant circuit 8, 9, tuned to a frequency, e.g. 300 c/s., considerably higher than the frame frequency, and a damping circuit comprising a diode 10 and resistor 11 is connected across the tuned circuit, the pulse train generated in the resonant circuit and appearing at the junction of the diode and resistor being applied to synchronize the oscillator. A capacitor 20 serves to integrate the pulse train. Interaction between the frame oscillator and separator stage is avoided by applying the pulse train to the anode of the oscillator valve through a resistor 21 and capacitor 22. Amplifier 7 is operated with a short grid base characteristic, so as to limit the input signal excursions and thereby eliminate interference, by returning the grid to a positive potential via resistor 16 and providing a low screen voltage by way of potential divider 18, 19. A switch or relay circuit may be provided to reverse the connections to diode 10 to allow for operation with received signals bearing either positive or negative modulation.
GB3765262A 1961-10-10 1962-10-04 A television receiver circuit arrangement Expired GB1017081A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB64332A DE1174827B (en) 1961-10-10 1961-10-10 Circuit arrangement for a television receiver

Publications (1)

Publication Number Publication Date
GB1017081A true GB1017081A (en) 1966-01-12

Family

ID=6974346

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3765262A Expired GB1017081A (en) 1961-10-10 1962-10-04 A television receiver circuit arrangement

Country Status (2)

Country Link
DE (1) DE1174827B (en)
GB (1) GB1017081A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1275103B (en) * 1965-08-31 1968-08-14 Standard Elektrik Lorenz Ag Amplitude filter for television receivers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1111555A (en) * 1953-08-12 1956-03-01 Thomson Houston Comp Francaise Pulse discriminator circuit
DE1086275B (en) * 1957-08-09 1960-08-04 Fernseh Gmbh Circuit arrangement for emphasizing the vertical sync pulses from the sync pulse mixture of a television signal

Also Published As

Publication number Publication date
DE1174827C2 (en) 1965-02-04
DE1174827B (en) 1964-07-30

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