US4930155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple redialing system
Assignee: Ricoh Co Ltd
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Filing: 1988-12-22
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Granted: 1990-05-29
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Expires: 2008-12-22
Abstract
Abstract A redialing system for use in an apparatus, such as a telephone unit, connected to a telephone network includes a telephone number memory for storing up to a predetermined number of telephone numbers each time when input and a character display unit for displaying desired information, including a telephone number. Each time when a recall button is depressed, another telephone number is read out from the memory and displayed at the character display unit in a predetermined order. When a redial button is depressed with a desired telephone number displayed at the character display unit, a call is automatically placed to a station of that desired telephone number.
Inventors
- 👤 Shunji Kurokawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:40
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/26; H04M1/27; H04M1/274; H04M1/2745; H04M1/27467; H04M1/2747
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
132 words
A radial system for use in a telephone unit having a handset and connected to a telephone network, comprising: a plurality of manual selection buttons for inputting a phone number; storing means for automatically storing the phone number in a memory immediately after the phone number is input, said memory having a capacity for storing a plurality of phone numbers; input means connecting said plurality of manual selection buttons to said storing means; retrieval means for retrieving the plurality of phone numbers located in the memory of said storing means on a last-in-first-out basis; display means for displaying a desired phone number retrieved by said retrieval means; and automatic call dialing means for automatically calling the desired phone number displayed on said display means when said handset is in an off-hook state.
Claim 2
Dependent Claim
132 words
A radial system for use in a telephone unit having a handset and connected to a telephone network, comprising: a plurality of manual selection buttons for inputting a phone number; storing means for automatically storing the phone number in a memory immediately after the phone number is input, said memory having a capacity for storing a plurality of phone numbers; input means connecting said plurality of manual selection buttons to said storing means; retrieval means for retrieving the plurality of phone numbers located in the memory of said storing means on a last-in-first-out basis; display means for displaying a desired phone number retrieved by said retrieval means; and automatic call dialing means for automatically calling the desired phone number displayed on said display means when said handset is in an off-hook state.
Claim 3
Dependent Claim
37 words
A system according to claim 1, wherein: when the handset is picked up and the phone number is input, the telephone number thus input is stored into a particular address of said memory in said storing means.
Claim 4
Dependent Claim
49 words
A system according to claim 1, wherein: said retrieval means includes a recall button which, when depressed during a time that said handset is picked up, causes a telephone number stored in a read address of said memory of said storing means to be displayed on said display means.
Claim 5
Dependent Claim
47 words
A system according to claim 3, wherein: said automatic call dialing means includes a radial button which, when depressed when said handset is picked up, causes the telephone number stored in a read address of said memory and displayed on said display means to be automatically dialed.
Claim 6
Dependent Claim
56 words
A system according to claim 1, wherein: said retrieval means includes a recall button which, when depressed during a time when said handset is in an on-hook status, results in a telephone number stored in a read address of said memory and displayed on said display means to be dialed when said handset is picked up.
Claim 7
Dependent Claim
18 words
A system according to claim 1, wherein: said memory of said storing means includes a random access memory.
Claim 8
Dependent Claim
15 words
A system according to claim 6, further comprising: a timing means connected to said memory.
Claim 9
Dependent Claim
46 words
A system according to claim 1, wherein: said retrieval means includes a recall button; said automatic call dialing means includes a redial button; and said input means includes an input-output port connecting said retrieval means to said recall button, said redial button and said display means.
References Cited (Backward Citations)
US4720849A
Cited
US4709387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-28 | 1993-11-27 | 1994-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-28 | 1997-11-27 | 1998-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-28 | 2001-11-27 | 2002-05-29 | $7700.00 | Window Closed / Lapsed |