JPS57202171A - Portable type modulation and demodulation device - Google Patents

Portable type modulation and demodulation device

Info

Publication number
JPS57202171A
JPS57202171A JP8566481A JP8566481A JPS57202171A JP S57202171 A JPS57202171 A JP S57202171A JP 8566481 A JP8566481 A JP 8566481A JP 8566481 A JP8566481 A JP 8566481A JP S57202171 A JPS57202171 A JP S57202171A
Authority
JP
Japan
Prior art keywords
handset
main body
demodulation device
portable type
demodulation
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
JP8566481A
Other languages
Japanese (ja)
Inventor
Ryotaro Fukui
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP8566481A priority Critical patent/JPS57202171A/en
Publication of JPS57202171A publication Critical patent/JPS57202171A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

PURPOSE:To obtain the small-sized pocketable or the like titled device, by using electromagnetic coupling as a reception coupling system, in a portable type modulation and demodulation device used for a data transmission service using a telephone line, etc. CONSTITUTION:Main body of a modulation and demodulation device 9 has a transmitter of a handset 2, and a magnetic pickup 11 is fitted near the receiver of the handset 2 with adsorption, etc. A transmission data is modulated with the main body 9 and enters the transmitter of the handset 2 as sound from a transmission speaker 10 and is transmitted via a telephone line. The received data is picked up with a magnetic pickup 11 fitted near the receiver of the handset 2 by means of the adsorption through electromagnetic coupling and transmitted to a terminal device DTE(not shown) via a connector 12 through demodulation at the main body 9.
JP8566481A 1981-06-05 1981-06-05 Portable type modulation and demodulation device Pending JPS57202171A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8566481A JPS57202171A (en) 1981-06-05 1981-06-05 Portable type modulation and demodulation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8566481A JPS57202171A (en) 1981-06-05 1981-06-05 Portable type modulation and demodulation device

Publications (1)

Publication Number Publication Date
JPS57202171A true JPS57202171A (en) 1982-12-10

Family

ID=13865084

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8566481A Pending JPS57202171A (en) 1981-06-05 1981-06-05 Portable type modulation and demodulation device

Country Status (1)

Country Link
JP (1) JPS57202171A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5233130U (en) * 1975-08-30 1977-03-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5233130U (en) * 1975-08-30 1977-03-08

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