US6009323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of placing a call in a two-way radio communication system
Assignee: Google Technology Holdings LLC
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Filing: 1997-05-01
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Granted: 1999-12-28
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Expires: 2017-05-01
Abstract
Abstract A method is provided for placing a call from a two-way radio subscriber unit operating within a two-way radio communication system (100). A user operates the subscriber unit in a call address search mode (310), and provides search criteria data that references a communication target (320). The search criteria data is transmitted in a query to system equipment which provides, in response, a list of matching identifiers and corresponding call addresses (330, 340). This list is presented to the user and a selection obtained (350, 360). A call address corresponding to the user selection is used to initiate the call to the communication target (370).
Inventors
- 👤 Timothy W. Heffield
- 👤 Craig G. Bishop
- 👤 David E. Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:36
CPC Classifications
H; H04; H04W; H04W8/00; H04W8/18; H04W4/00; H04W76/00; H04W76/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
154 words
In a two-way radio communication system having infrastructure equipment and a subscriber unit, a method comprising the steps of: at the subscriber unit: accepting user input of a search criteria data for identifying a private call identifier for establishing a direct simplex mode communication link between the subscriber unit and another subscriber unit operating with the two-way radio communication system; transmitting to the infrastructure equipment, by wireless signal, a query that includes the search criteria data; receiving, in response to the query, a list of matching names and call identifiers; displaying the list of matching names and call identifiers; accepting a user selection identifying an entry on the list of matching names and call identifiers, which entry corresponds to the target communicant; and requesting a direct simplex mode communication link between the subscriber unit and another subscriber unit operating with the two-way radio communication system using the call identifier corresponding to the user selection.
Claim 2
Dependent Claim
154 words
In a two-way radio communication system having infrastructure equipment and a subscriber unit, a method comprising the steps of: at the subscriber unit: accepting user input of a search criteria data for identifying a private call identifier for establishing a direct simplex mode communication link between the subscriber unit and another subscriber unit operating with the two-way radio communication system; transmitting to the infrastructure equipment, by wireless signal, a query that includes the search criteria data; receiving, in response to the query, a list of matching names and call identifiers; displaying the list of matching names and call identifiers; accepting a user selection identifying an entry on the list of matching names and call identifiers, which entry corresponds to the target communicant; and requesting a direct simplex mode communication link between the subscriber unit and another subscriber unit operating with the two-way radio communication system using the call identifier corresponding to the user selection.
Claim 3
Dependent Claim
42 words
The method of claim 1, further comprising the steps of: maintaining an internal list of names and call identifiers; and automatically updating the internal list with information from the list of matching names and call identifiers received in response to the query.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-12-27 | 2003-06-28 | 2003-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-12-27 | 2007-06-28 | 2007-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-12-27 | 2011-06-28 | 2011-12-28 | $7700.00 | Window Closed / Lapsed |