JPS5318316A - Multichannel communication system - Google Patents

Multichannel communication system

Info

Publication number
JPS5318316A
JPS5318316A JP9231677A JP9231677A JPS5318316A JP S5318316 A JPS5318316 A JP S5318316A JP 9231677 A JP9231677 A JP 9231677A JP 9231677 A JP9231677 A JP 9231677A JP S5318316 A JPS5318316 A JP S5318316A
Authority
JP
Japan
Prior art keywords
communication system
multichannel communication
multichannel
communication
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.)
Pending
Application number
JP9231677A
Other languages
Japanese (ja)
Inventor
Gonchiyarofu Nikorai
Maikuru Panteiru Denisu
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of JPS5318316A publication Critical patent/JPS5318316A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
    • H03J5/0281—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer the digital values being held in an auxiliary non erasable memory
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/28—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers
    • H03J7/285—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers the counter or frequency divider being used in a phase locked loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/405—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with multiple discrete channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Transceivers (AREA)
  • Circuits Of Receivers In General (AREA)
JP9231677A 1976-08-02 1977-08-02 Multichannel communication system Pending JPS5318316A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71103676A 1976-08-02 1976-08-02

Publications (1)

Publication Number Publication Date
JPS5318316A true JPS5318316A (en) 1978-02-20

Family

ID=24856538

Family Applications (4)

Application Number Title Priority Date Filing Date
JP9231977A Pending JPS5318319A (en) 1976-08-02 1977-08-02 Multichannel communication system
JP9231777A Pending JPS5318317A (en) 1976-08-02 1977-08-02 Multichannel communication system
JP9231677A Pending JPS5318316A (en) 1976-08-02 1977-08-02 Multichannel communication system
JP52092318A Expired JPS6037659B2 (en) 1976-08-02 1977-08-02 multi-channel communication equipment

Family Applications Before (2)

Application Number Title Priority Date Filing Date
JP9231977A Pending JPS5318319A (en) 1976-08-02 1977-08-02 Multichannel communication system
JP9231777A Pending JPS5318317A (en) 1976-08-02 1977-08-02 Multichannel communication system

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP52092318A Expired JPS6037659B2 (en) 1976-08-02 1977-08-02 multi-channel communication equipment

Country Status (3)

Country Link
JP (4) JPS5318319A (en)
GB (3) GB1584622A (en)
HK (3) HK50983A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60117061U (en) * 1984-01-14 1985-08-07 ロ−ム株式会社 Tweezers for wafers

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023988A (en) * 1973-07-02 1975-03-14
US4675863A (en) 1985-03-20 1987-06-23 International Mobile Machines Corp. Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
US4825448A (en) * 1986-08-07 1989-04-25 International Mobile Machines Corporation Subscriber unit for wireless digital telephone system
JPH01103326A (en) * 1987-10-16 1989-04-20 Aikomu Kk Method for receiving plural frequencies of radio communication equipment
DE59408452D1 (en) * 1993-04-13 1999-08-12 Siemens Ag Transmitter / receiver arrangement for higher frequencies
US5546383A (en) 1993-09-30 1996-08-13 Cooley; David M. Modularly clustered radiotelephone system
US9614572B2 (en) * 2015-02-13 2017-04-04 Motorola Solutions, Inc. Apparatus and method for extending feature selection in a communication system
JP6286470B2 (en) * 2016-04-06 2018-02-28 株式会社不二機販 Mold surface treatment method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60117061U (en) * 1984-01-14 1985-08-07 ロ−ム株式会社 Tweezers for wafers
JPH0115507Y2 (en) * 1984-01-14 1989-05-09

Also Published As

Publication number Publication date
JPS5318319A (en) 1978-02-20
HK50783A (en) 1983-11-11
HK50983A (en) 1983-11-11
JPS5318318A (en) 1978-02-20
GB1584622A (en) 1981-02-18
GB1584621A (en) 1981-02-18
GB1584623A (en) 1981-02-18
JPS5318317A (en) 1978-02-20
JPS6037659B2 (en) 1985-08-27
HK50883A (en) 1983-11-11

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