GB1009330A - Amplitude modulation system - Google Patents

Amplitude modulation system

Info

Publication number
GB1009330A
GB1009330A GB50406/63A GB5040663A GB1009330A GB 1009330 A GB1009330 A GB 1009330A GB 50406/63 A GB50406/63 A GB 50406/63A GB 5040663 A GB5040663 A GB 5040663A GB 1009330 A GB1009330 A GB 1009330A
Authority
GB
United Kingdom
Prior art keywords
signal
modulating
carrier
resistor
frequency
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
GB50406/63A
Other languages
English (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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB1009330A publication Critical patent/GB1009330A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/36—Amplitude modulation by means of semiconductor device having at least three electrodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/148—Interfacing a video terminal to a particular transmission medium, e.g. ISDN

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Amplitude Modulation (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB50406/63A 1962-12-26 1963-12-20 Amplitude modulation system Expired GB1009330A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US247186A US3324416A (en) 1962-12-26 1962-12-26 Amplitude modulation system

Publications (1)

Publication Number Publication Date
GB1009330A true GB1009330A (en) 1965-11-10

Family

ID=22933933

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50406/63A Expired GB1009330A (en) 1962-12-26 1963-12-20 Amplitude modulation system

Country Status (7)

Country Link
US (1) US3324416A (enExample)
AT (1) AT242764B (enExample)
BE (1) BE641809A (enExample)
CH (1) CH418410A (enExample)
DE (1) DE1232195B (enExample)
GB (1) GB1009330A (enExample)
NL (1) NL302291A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3384840A (en) * 1965-07-14 1968-05-21 Teldata Corp Balanced modulator having suppression means
US3633005A (en) * 1970-02-26 1972-01-04 Ibm A four quadrant multiplier using a single amplifier in a balanced modulator circuit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1004231B (de) * 1953-01-13 1957-03-14 Telefunken Gmbh Schaltungsanordnung zur impulstraegerlosen Modulation von Impulsen
US2992326A (en) * 1959-08-10 1961-07-11 Leonard R Kahn Frquency translating circuitry
US3122715A (en) * 1960-10-14 1964-02-25 Electro Mechanical Res Inc Frequency converter systems
US3229230A (en) * 1962-10-19 1966-01-11 Motorola Inc Suppressed carrier modulator

Also Published As

Publication number Publication date
DE1232195B (de) 1967-01-12
US3324416A (en) 1967-06-06
NL302291A (enExample)
AT242764B (de) 1965-10-11
CH418410A (de) 1966-08-15
BE641809A (enExample) 1964-06-29

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