IT8719425D0 - Phone no controllatoda computer cord. - Google Patents

Phone no controllatoda computer cord.


Publication number
IT8719425D0 IT8719425A IT1942587A IT8719425D0 IT 8719425 D0 IT8719425 D0 IT 8719425D0 IT 8719425 A IT8719425 A IT 8719425A IT 1942587 A IT1942587 A IT 1942587A IT 8719425 D0 IT8719425 D0 IT 8719425D0
Prior art keywords
handset unit
base unit
Prior art date
Application number
Other languages
Italian (it)
Other versions
IT1202566B (en
Paul Benjamin Newland
William Richard Becker
James Joseph Boyd Iii
William Joseph Clifford
Original Assignee
American Thelephone & Telegrap
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
Priority to US06/831,557 priority Critical patent/US4731814A/en
Application filed by American Thelephone & Telegrap filed Critical American Thelephone & Telegrap
Publication of IT8719425D0 publication Critical patent/IT8719425D0/en
Application granted granted Critical
Publication of IT1202566B publication Critical patent/IT1202566B/en



    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0251Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0261Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/028Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
    • Y02D70/00Techniques for reducing energy consumption in wireless communication networks


A computer-controlled cordless telephone system having a base unit and a handset unit provides for increased functionality in communications between the base unit and the handset unit, and also provides a controlled power-up/power-down mode of operation for the handset unit. Increased functionality is achieved by employing a message format for control signals transmitted between the base unit and the handset unit in the form of frequency shift keyed (FSK) signals which include a data field. This data field may be in the form of either opcode data or digit data, thereby allowing for many different commands or functions. Power to a computer, a receiver and certain other selected circuitry in the handset unit is controlled to minimize power consumption when the handset unit is in an out-of-cradle-and-standby state. Power to other nonessential circuitry in the handset unit is turned completely off during this state. The handset unit automatically turns on to a full operating mode from the alternating power-up/power-down mode in response to events such as (1) a user depressing a key no the keypad of the handset unit for either initiating a telephone calls or paging the base unit, and (2) the base unit detecting an incoming ringing signal on the telephone lines.
IT19425/87A 1986-02-21 1987-02-19 Cordless Telefone controlled by computer IT1202566B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US06/831,557 US4731814A (en) 1986-02-21 1986-02-21 Computer-controlled cordless telephone

Publications (2)

Publication Number Publication Date
IT8719425D0 true IT8719425D0 (en) 1987-02-19
IT1202566B IT1202566B (en) 1989-02-09



Family Applications (1)

Application Number Title Priority Date Filing Date
IT19425/87A IT1202566B (en) 1986-02-21 1987-02-19 Cordless Telefone controlled by computer

Country Status (7)

Country Link
US (1) US4731814A (en)
JP (1) JPS62248323A (en)
CA (1) CA1256225A (en)
GB (1) GB2187065B (en)
HK (1) HK90590A (en)
IT (1) IT1202566B (en)
SG (1) SG63990G (en)

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Also Published As

Publication number Publication date
GB8703515D0 (en) 1987-03-25
JPS62248323A (en) 1987-10-29
CA1256225A1 (en)
US4731814A (en) 1988-03-15
IT1202566B (en) 1989-02-09
GB2187065B (en) 1990-04-04
CA1256225A (en) 1989-06-20
HK90590A (en) 1990-11-09
GB2187065A (en) 1987-08-26
SG63990G (en) 1990-09-07

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Legal Events

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TA Fee payment date (situation as of prs-date), data collected since 19931001

Effective date: 19970225