FR793193A - Electrical pulse generator for image transmission device - Google Patents

Electrical pulse generator for image transmission device

Info

Publication number
FR793193A
FR793193A FR793193DA FR793193A FR 793193 A FR793193 A FR 793193A FR 793193D A FR793193D A FR 793193DA FR 793193 A FR793193 A FR 793193A
Authority
FR
France
Prior art keywords
transmission device
pulse generator
image transmission
electrical pulse
electrical
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
Other languages
French (fr)
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR793193A publication Critical patent/FR793193A/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
    • H04N5/06—Generation of synchronising signals
    • H04N5/067—Arrangements or circuits at the transmitter end
    • 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
    • H03K4/12—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 voltage is produced across a capacitor
    • H03K4/14—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 voltage is produced across a capacitor using two tubes so coupled that the input of each one is derived from the output of the other, e.g. multivibrator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/06—Generation of synchronising signals
FR793193D 1934-10-18 1935-07-31 Electrical pulse generator for image transmission device Expired FR793193A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US748773A US2132654A (en) 1934-10-18 1934-10-18 Electrical apparatus

Publications (1)

Publication Number Publication Date
FR793193A true FR793193A (en) 1936-01-18

Family

ID=25010861

Family Applications (1)

Application Number Title Priority Date Filing Date
FR793193D Expired FR793193A (en) 1934-10-18 1935-07-31 Electrical pulse generator for image transmission device

Country Status (2)

Country Link
US (1) US2132654A (en)
FR (1) FR793193A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741427C (en) * 1938-06-14 1943-11-16 Fernseh Gmbh Frequency division method
DE761254C (en) * 1939-12-03 1952-08-28 Siemens & Halske A G Arrangement for converting a given sequence of alternating positive and negative electrical pulses into a corresponding pulse sequence of half the frequency, in particular for the purposes of pulse counting according to the dual system
DE929979C (en) * 1948-10-02 1955-07-07 Siemens Ag Device for generating a phase-locked oscillation linked to a pulse train

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536035A (en) * 1939-12-12 1951-01-02 Claud E Cleeton Means for producing a variable number of pulses
US2534232A (en) * 1940-01-24 1950-12-19 Claud E Cleeton Trigger circuit and switching device
GB552039A (en) * 1940-10-30 1943-03-19 Marconi Wireless Telegraph Co Improvements relating to frequency modulation
US2425657A (en) * 1941-04-17 1947-08-12 Rca Corp Short-wave apparatus
US2442403A (en) * 1942-09-23 1948-06-01 Rca Corp Electronic switching and computing device
US2425297A (en) * 1942-10-24 1947-08-12 Sun Kraft Inc Lamp circuit
US2428617A (en) * 1943-06-19 1947-10-07 Ibm Gas-filled tube type of relaxation oscillator system
US2453203A (en) * 1943-06-19 1948-11-09 Ibm Variable frequency relaxation oscillator
US2436725A (en) * 1943-10-23 1948-02-24 Morrison Montford Electronic timing apparatus
US2495708A (en) * 1944-03-24 1950-01-31 Rupert H Draeger Electrically controlled flicker fusion testing apparatus
US2458156A (en) * 1944-07-29 1949-01-04 Rca Corp Automatic frequency control system
US2443922A (en) * 1944-08-02 1948-06-22 Philco Corp Control circuit for relaxation oscillators
US2450360A (en) * 1944-08-31 1948-09-28 Rca Corp Timing marker and station selection apparatus
US2470843A (en) * 1944-10-04 1949-05-24 Philco Corp Stop-on carrier tuner
US2693647A (en) * 1944-12-21 1954-11-09 Robert O Bolster Radar training system
US2448762A (en) * 1945-02-13 1948-09-07 Du Mont Allen B Lab Inc Process and apparatus for monitoring synchronizing generators
US2460326A (en) * 1945-02-17 1949-02-01 Clarence M Woodruff Transmitter
US2589240A (en) * 1945-04-07 1952-03-18 William E Frye Double pulse generator
US2567846A (en) * 1945-08-01 1951-09-11 Andrew B Jacobsen Pulse coding circuit
US2496819A (en) * 1946-02-04 1950-02-07 Albert R Simpson Pulse generator
US2637811A (en) * 1949-01-18 1953-05-05 Ibm Pulse generating system
US2627033A (en) * 1949-12-01 1953-01-27 Garold K Jensen Frequency meter
US2903513A (en) * 1953-09-14 1959-09-08 Rca Corp Storage and switching apparatus for automatic telegraph signalling systems

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741427C (en) * 1938-06-14 1943-11-16 Fernseh Gmbh Frequency division method
DE761254C (en) * 1939-12-03 1952-08-28 Siemens & Halske A G Arrangement for converting a given sequence of alternating positive and negative electrical pulses into a corresponding pulse sequence of half the frequency, in particular for the purposes of pulse counting according to the dual system
DE929979C (en) * 1948-10-02 1955-07-07 Siemens Ag Device for generating a phase-locked oscillation linked to a pulse train

Also Published As

Publication number Publication date
US2132654A (en) 1938-10-11

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