US4995070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic key telephone set with function operation test function and method of controlling the same
Assignee: Toshiba Corp
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Filing: 1989-09-21
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Granted: 1991-02-19
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Expires: 2009-09-21
Abstract
Abstract This invention is an electronic key telephone set including light-emitting elements for state indication, an acoustic converting element for converting a voice signal into an acoustic wave, a display unit for displaying characters and the like, operations keys, including pushbuttons, for performing an input operation, and a control unit having an operation check test function for checking functions of the telephone set including telephone set components such as the light-emitting elements, the display unit, and the acoustic converting element, for waiting for a key input after initialization is executed, if predetermined specific keys of the operation keys are operated within a predetermined time, executing the operation check test function, and if the specific keys are not operated within the predetermined time, activating a function as a normal telephone set. A button operation required for executing the operation test for functions of the telephone set is accepted for a predetermined limit time such that the button operation need only be performed within the limit time after the telephone set is connected to a switching system. The operation for executing the function operation test can be easily performed.
Inventors
- 👤 Kimitoshi Shin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:44
CPC Classifications
H; H04; H04M; H04M9/00; H04M9/002
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
123 words
An electronic key telephone set comprising: a light-emitting means for state indication; an acoustic converting means for converting a voice signal into an acoustic wave; display means for displaying characters and the like; operation key means for starting an operation; and control means, for initializing said electronic key telephone set when said electronic key telephone set is connected to an external exchange, said control means including a self-test means for sequentially testing said light-emitting means, said acoustic converting means, and said display means, when said operation key means is actuated within a predetermined period after said electronic key telephone set was initialized, and a means for setting said electronic key telephone set to a normal mode after a completion of the testing function.
Claim 2
Dependent Claim
123 words
An electronic key telephone set comprising: a light-emitting means for state indication; an acoustic converting means for converting a voice signal into an acoustic wave; display means for displaying characters and the like; operation key means for starting an operation; and control means, for initializing said electronic key telephone set when said electronic key telephone set is connected to an external exchange, said control means including a self-test means for sequentially testing said light-emitting means, said acoustic converting means, and said display means, when said operation key means is actuated within a predetermined period after said electronic key telephone set was initialized, and a means for setting said electronic key telephone set to a normal mode after a completion of the testing function.
Claim 3
Dependent Claim
29 words
An electronic key telephone set according to claim 1, wherein said self-test means includes memory means for storing a self-test instruction data by which the self-test operation is executed.
Claim 4
Dependent Claim
47 words
An electronic key telephone set according to claim 1, wherein said light-emitting element means has a plurality of said light-emitting elements; and said self-test means executes the self-test such that said light-emitting elements are sequentially turned on and then simultaneously turned on, to check said light-emitting elements.
Claim 5
Dependent Claim
27 words
An electronic key telephone set according to claim 1, wherein said self-test means executes the self-test such that said acoustic converting means generates a predetermined test tone.
Claim 6
Dependent Claim
26 words
An electronic key telephone set according to claim 1, wherein said self-test means executes the self-test such that said display means displays a predetermined test pattern.
Claim 7
Dependent Claim
33 words
An electronic key telephone set according to claim 1, wherein the said control means specifies at least one check to be executed, in accordance with the key operation of said operation key means.
Claim 8
Dependent Claim
107 words
An electronic key telephone set comprising a plurality of operation means including operation key means and control means, said operation key means including: a plurality of operation keys, for performing an input operation; and said control means including means for checking said operation means, said control means waiting for key input for a predetermined period of time after initialization, starting the checking if predetermined specific keys of said operation key means are operated within said predetermined period of time, and activating a function as a normal telephone set, if the checking is completed or if said specific keys are not operated within said predetermined period of time.
Claim 9
Dependent Claim
107 words
An electronic key telephone set comprising a plurality of operation means including operation key means and control means, said operation key means including: a plurality of operation keys, for performing an input operation; and said control means including means for checking said operation means, said control means waiting for key input for a predetermined period of time after initialization, starting the checking if predetermined specific keys of said operation key means are operated within said predetermined period of time, and activating a function as a normal telephone set, if the checking is completed or if said specific keys are not operated within said predetermined period of time.
Claim 10
Dependent Claim
133 words
An electronic key telephone set comprising a plurality of operation means including operation key means and control means, said operation key means including: a plurality of operation keys, for performing an input operation; and said control means including means for checking said operation means, said control means waiting for key input for a predetermined period of time after initialization, starting the checking if predetermined specific keys of said operation key means are operated within said predetermined period of time, and for activating a function as a normal telephone set, if the checking is completed or if said specific keys are not operated within said predetermined period of time, and wherein said control means performs a predetermined linking operation with respect to a switching system and activates a function as a normal telephone set.
Claim 11
Dependent Claim
133 words
An electronic key telephone set comprising a plurality of operation means including operation key means and control means, said operation key means including: a plurality of operation keys, for performing an input operation; and said control means including means for checking said operation means, said control means waiting for key input for a predetermined period of time after initialization, starting the checking if predetermined specific keys of said operation key means are operated within said predetermined period of time, and for activating a function as a normal telephone set, if the checking is completed or if said specific keys are not operated within said predetermined period of time, and wherein said control means performs a predetermined linking operation with respect to a switching system and activates a function as a normal telephone set.
Claim 12
Dependent Claim
39 words
An electronic key telephone set according to claim 8, wherein said control means performs the linking operation wherein an operation start report signal representing that the operation as a telephone set is started is supplied to said switching system.
Claim 13
Dependent Claim
54 words
An electronic key telephone set according to claim 8, wherein said control means performs the linking operation wherein an operation start report signal representing that the operation as a telephone set is started is supplied to said switching system, and a recognition report signal is supplied from said switching system to said control means.
Claim 14
Dependent Claim
103 words
An electronic key telephone set according to claim 8, wherein said control means performs the link operation having a function for sending an operation start report signal to the switching system and making said control means in a stand-by condition, when a predetermined self-test executed by said control means results in a normal condition, and a function for allowing said switching system to issue a call control start instruction in response to the operation start report signal and for permitting said electronic key telephone set to operate as a conventional telephone when said electronic key telephone set receives the call control start instruction.
Claim 15
Dependent Claim
84 words
An electronic key telephone set comprising: input means for performing an input operation; output means for outputting indication information; and control means, including initialization means for initializing said key telephone set when said key telephone set is connected to an external exchange, self-testing means for self-checking a function of said output means after the initializing of said key telephone set, and normal telephone set operation means for executing a normal telephone set operation after a completion of the checking operation of said self-testing means.
Claim 16
Dependent Claim
84 words
An electronic key telephone set comprising: input means for performing an input operation; output means for outputting indication information; and control means, including initialization means for initializing said key telephone set when said key telephone set is connected to an external exchange, self-testing means for self-checking a function of said output means after the initializing of said key telephone set, and normal telephone set operation means for executing a normal telephone set operation after a completion of the checking operation of said self-testing means.
Claim 17
Independent Claim
92 words
A method of controlling an electronic key telephone set, comprising: the first step of setting said telephone set to wait for a key input for a predetermined period of time after initialization is executed; the second step of executing an operation check test if predetermined specific keys of said telephone set are operated within the predetermined period of time; and the third step of activating a function as a normal telephone set after said second step is executed or if said specific keys are not operated within the predetermined period of time.
Claim 18
Independent Claim
92 words
A method of controlling an electronic key telephone set, comprising: the first step of setting said telephone set to wait for a key input for a predetermined period of time after initialization is executed; the second step of executing an operation check test if predetermined specific keys of said telephone set are operated within the predetermined period of time; and the third step of activating a function as a normal telephone set after said second step is executed or if said specific keys are not operated within the predetermined period of time.
Claim 19
Dependent Claim
28 words
A method according to claim 13, wherein a check to be executed is specified in accordance with the operation of said specific keys in the operation check test.
Claim 20
Independent Claim
81 words
A method of controlling an electronic key telephone set comprising: a first step for waiting the input from input means during a predetermined period from an initialization; a second step for executing an operation confirmation test when a specific data is input from said input means within said predetermined period; a third step for operating said telephone set with a normal mode when the specific data is not input after the execution of said second step or within said predetermined period.
Claim 21
Independent Claim
81 words
A method of controlling an electronic key telephone set comprising: a first step for waiting the input from input means during a predetermined period from an initialization; a second step for executing an operation confirmation test when a specific data is input from said input means within said predetermined period; a third step for operating said telephone set with a normal mode when the specific data is not input after the execution of said second step or within said predetermined period.
Claim 22
Dependent Claim
107 words
An electronic key telephone set comprising: input means for performing an input operation; output means for outputting indication information; and control means for controlling operation of said electronic key telephone set; said control means including a processor, a memory including an initial program loader, initializing means for initializing said key telephone set by executing the initial program loader when said key telephone set is connected to an external exchange, and self-testing means for self-checking a function of said output means after the initializing of said key telephone set, said processor executing a normal telephone set operation after a completion of the checking operation of said self-testing means.
Claim 23
Dependent Claim
107 words
An electronic key telephone set comprising: input means for performing an input operation; output means for outputting indication information; and control means for controlling operation of said electronic key telephone set; said control means including a processor, a memory including an initial program loader, initializing means for initializing said key telephone set by executing the initial program loader when said key telephone set is connected to an external exchange, and self-testing means for self-checking a function of said output means after the initializing of said key telephone set, said processor executing a normal telephone set operation after a completion of the checking operation of said self-testing means.
References Cited (Backward Citations)
US4517409A
Cited
JPS6178253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-18 | 1994-08-20 | 1995-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-18 | 1998-08-20 | 1999-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-18 | 2002-08-20 | 2003-02-19 | $7700.00 | Window Closed / Lapsed |