DE2653716C3 - Modem - Google Patents

Modem

Info

Publication number
DE2653716C3
DE2653716C3 DE2653716A DE2653716A DE2653716C3 DE 2653716 C3 DE2653716 C3 DE 2653716C3 DE 2653716 A DE2653716 A DE 2653716A DE 2653716 A DE2653716 A DE 2653716A DE 2653716 C3 DE2653716 C3 DE 2653716C3
Authority
DE
Germany
Prior art keywords
data
processor
modem
type
signals
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
DE2653716A
Other languages
German (de)
English (en)
Other versions
DE2653716A1 (de
DE2653716B2 (de
Inventor
David Nathan Middletown Sherman
Shiv Prakash Lakewood Verma
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.)
AT&T Corp
Original Assignee
Western Electric Co 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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of DE2653716A1 publication Critical patent/DE2653716A1/de
Publication of DE2653716B2 publication Critical patent/DE2653716B2/de
Application granted granted Critical
Publication of DE2653716C3 publication Critical patent/DE2653716C3/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/10—Program control for peripheral devices
    • G06F13/12—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor
    • G06F13/124—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor where hardware is a sequential transfer control unit, e.g. microprocessor, peripheral processor or state-machine
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/382—Information transfer, e.g. on bus using universal interface adapter
    • G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Communication Control (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
DE2653716A 1975-11-26 1976-11-26 Modem Expired DE2653716C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63529975A 1975-11-26 1975-11-26

Publications (3)

Publication Number Publication Date
DE2653716A1 DE2653716A1 (de) 1977-06-02
DE2653716B2 DE2653716B2 (de) 1980-06-04
DE2653716C3 true DE2653716C3 (de) 1981-02-12

Family

ID=24547229

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2653716A Expired DE2653716C3 (de) 1975-11-26 1976-11-26 Modem

Country Status (11)

Country Link
JP (1) JPS5266347A (fr)
BE (1) BE848693A (fr)
CA (1) CA1075364A (fr)
DE (1) DE2653716C3 (fr)
EG (1) EG13506A (fr)
ES (1) ES453682A1 (fr)
FR (1) FR2333298A1 (fr)
GB (1) GB1523049A (fr)
IL (1) IL50965A (fr)
NL (1) NL7613032A (fr)
SE (1) SE428252B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1082802B (it) * 1977-05-02 1985-05-21 Cselt Centro Studi Lab Telecom Unita microprogrammata per una apparecchiatura di terminazione di rete in trasmissione dati integrata con dispositivo di mo demodulazione e per la relativa apparecchiatura di centrale
US4800574A (en) * 1983-05-10 1989-01-24 Ricoh Company, Ltd. Digital modulator/demodulator including non-linear analog-to-digital converter and circuitry compensating for the non-linearity of the converter
US4622551A (en) * 1983-10-27 1986-11-11 Otis Elevator Company Half-duplex industrial communications system
US4715044A (en) * 1986-07-03 1987-12-22 American Telephone & Telegraph Company Automatic synchronous/asynchronous modem

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1488435A (en) * 1974-11-21 1977-10-12 Ibm Multi-line multi-mode modulator

Also Published As

Publication number Publication date
FR2333298B1 (fr) 1980-03-21
IL50965A0 (en) 1977-01-31
SE428252B (sv) 1983-06-13
SE7612842L (sv) 1977-05-27
GB1523049A (en) 1978-08-31
NL7613032A (nl) 1977-05-31
JPS5266347A (en) 1977-06-01
FR2333298A1 (fr) 1977-06-24
DE2653716A1 (de) 1977-06-02
CA1075364A (fr) 1980-04-08
DE2653716B2 (de) 1980-06-04
IL50965A (en) 1979-03-12
ES453682A1 (es) 1977-12-01
BE848693A (fr) 1977-03-16
EG13506A (en) 1982-03-31

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)