HK50983A - Multi-channel communication device with manual and automatic scanning electronic channel selection - Google Patents

Multi-channel communication device with manual and automatic scanning electronic channel selection

Info

Publication number
HK50983A
HK50983A HK50983A HK50983A HK50983A HK 50983 A HK50983 A HK 50983A HK 50983 A HK50983 A HK 50983A HK 50983 A HK50983 A HK 50983A HK 50983 A HK50983 A HK 50983A
Authority
HK
Hong Kong
Prior art keywords
manual
communication device
scanning electronic
automatic scanning
channel
Prior art date
Application number
HK50983A
Inventor
Nikolai Concharoff
Dennis Michael Puntil
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 HK50983A publication Critical patent/HK50983A/en

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 Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)
HK50983A 1976-08-02 1983-11-03 Multi-channel communication device with manual and automatic scanning electronic channel selection HK50983A (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
HK50983A true HK50983A (en) 1983-11-11

Family

ID=24856538

Family Applications (3)

Application Number Title Priority Date Filing Date
HK50883A HK50883A (en) 1976-08-02 1983-11-03 Multi-channel communication device with manual and automatic scanning electronic channel selection
HK50783A HK50783A (en) 1976-08-02 1983-11-03 Multi-channel communication device
HK50983A HK50983A (en) 1976-08-02 1983-11-03 Multi-channel communication device with manual and automatic scanning electronic channel selection

Family Applications Before (2)

Application Number Title Priority Date Filing Date
HK50883A HK50883A (en) 1976-08-02 1983-11-03 Multi-channel communication device with manual and automatic scanning electronic channel selection
HK50783A HK50783A (en) 1976-08-02 1983-11-03 Multi-channel communication device

Country Status (3)

Country Link
JP (4) JPS6037659B2 (en)
GB (3) GB1584621A (en)
HK (3) HK50883A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023988A (en) * 1973-07-02 1975-03-14
JPS60117061U (en) * 1984-01-14 1985-08-07 ロ−ム株式会社 Tweezers for wafers
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
EP0620656B1 (en) * 1993-04-13 1999-07-07 Siemens Aktiengesellschaft Transceiver for high 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

Also Published As

Publication number Publication date
JPS5318316A (en) 1978-02-20
HK50883A (en) 1983-11-11
GB1584622A (en) 1981-02-18
JPS5318318A (en) 1978-02-20
JPS5318317A (en) 1978-02-20
GB1584623A (en) 1981-02-18
JPS6037659B2 (en) 1985-08-27
JPS5318319A (en) 1978-02-20
HK50783A (en) 1983-11-11
GB1584621A (en) 1981-02-18

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