Patent US4575707A successfully refreshed from Google Patents.
US4575707A
Expired / Lapsed
US
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Waiting time display system
Assignee: General Research of Electronics Inc
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Filing: 1983-03-03
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Granted: 1986-03-11
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Expires: 2003-03-03
Abstract
Abstract A waiting time display system comprises a plurality of remote stations each including a waiting time display unit comprising a display portion for producing a visual display corresponding to waiting time and a control unit comprising control means selectively actuatable for producing predetermined output signals corresponding to a selected waiting time. A centralized monitoring unit is also provided and is responsive to the output signals from each control unit for monitoring the waiting time displayed on each display unit. A plurality of transmission lines coupled intermediate each of the control units and its associated display unit and intermediate each of the control units and the centralized monitoring unit for transmitting the output signals from each control unit to its associated display unit and to the centralized monitoring unit, respectively.
Inventors
- 👤 Kazuyoshi Imazeki
- 👤 Toshiyuki Tanaka
- 👤 Fumio Hayashibara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:58
CPC Classifications
G; G07; G07C; G07C11/00; G08; G08B; G08B5/00; G08B5/22; G08B5/36
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
135 words
A waiting time system comprising: a plurality of remote stations, each including a waiting time display unit comprising a display portion responsive to predetermined time signals for producing a visual display corresponding to waiting time, and a control unit comprising control means selectively actuatable for producing said predetermined time signals, said time signals corresponding to a selected waiting time; a centralized monitoring unit responsive to the predetermined time signals from each said control unit for monitoring the waiting time displayed on each display unit; and a plurality of transmission lines coupled intermediate each of said control units and its associated display unit and intermediate each of said control units and said centralized monitoring unit for transmitting the output signals from each control unit to its associated display unit and to the centralized monitoring unit, respectively.
Claim 2
Dependent Claim
135 words
A waiting time system comprising: a plurality of remote stations, each including a waiting time display unit comprising a display portion responsive to predetermined time signals for producing a visual display corresponding to waiting time, and a control unit comprising control means selectively actuatable for producing said predetermined time signals, said time signals corresponding to a selected waiting time; a centralized monitoring unit responsive to the predetermined time signals from each said control unit for monitoring the waiting time displayed on each display unit; and a plurality of transmission lines coupled intermediate each of said control units and its associated display unit and intermediate each of said control units and said centralized monitoring unit for transmitting the output signals from each control unit to its associated display unit and to the centralized monitoring unit, respectively.
Claim 3
Dependent Claim
28 words
A waiting time system according to claim 1 wherein each said remote station further includes audio means coupled to the associated control unit for audibly indicating waiting time.
Claim 4
Dependent Claim
29 words
A waiting time system according to claim 2 wherein said plurality of transmission lines further include transmission lines coupled intermediate each said control unit and its associated audio means.
Claim 5
Dependent Claim
40 words
A waiting time system according to claim 1 or claim 2 further comprising modem means coupled with said centralized monitoring unit for transmitting the output signals received by said centralized monitoring unit to a further location for utilization as desired.
Claim 6
Dependent Claim
35 words
A waiting time system according to claim 1 or claim 2 wherein each of said transmission lines transmits more than one of said output signals so as to decrease the number of transmission lines required.
Claim 7
Dependent Claim
32 words
A waiting time system according to claim 1 or claim 2 wherein each control unit further includes a monitor display for displaying the waiting time to an operator of said control unit.
Claim 8
Dependent Claim
31 words
A waiting time system according to claim 2 or claim 3 wherein said audio means comprises a voice synthesizer responsive to said output signals for audibly indicating the corresponding waiting time.
Claim 9
Dependent Claim
46 words
A waiting time system according to claim 1 wherein said centralized monitoring unit further includes a plurality of display members, each for displaying the waiting time displayed at one of said remote stations in accordance with the corresponding time signals received from the associated control unit.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-10 | 1989-09-09 | 1990-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-10 | 1993-09-09 | 1994-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-10 | 1997-09-09 | 1998-03-11 | $7700.00 | Window Closed / Lapsed |