US5784685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wireless intercom communication system and method of using same
Assignee: HM Electronics Inc
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Filing: 1995-08-16
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Granted: 1998-07-21
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Expires: 2015-08-16
Abstract
Abstract A base station for interconnecting via a wireless full duplex communication path, a plurality of stationary intercom unit stations with at least one portable transceiver unit. A page channel interface arrangement coupled to the stationary units and the base station interconnects the stationary units and the portable units with a common paging arrangement to enable all the users of the system to be alerted about messages to be transmitted.
Inventors
- 👤 Thomas H. Stanford
- 👤 David W. Snyder
- 👤 Elden R. Davisson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:23
CPC Classifications
H; H04; H04M; H04M9/00; H04M9/001
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
163 words
In a wired paging system having a plurality of stationary transceiver units for facilitating full duplex communication, and a paging arrangement coupled electrically to the plurality of stationary transceiver units for helping to interconnect them selectively in full duplex communication and for enabling them to perform paging operations via paging equipment, a wireless communication system, comprising: at least one wireless portable transceiver unit for full duplex communication with at least one of the stationary transceiver units and with the paging equipment; communication base means coupled electrically to the paging arrangement for transmitting and receiving full duplex communication messages between individual ones of the stationary transceiver units and the portable transceiver unit; means coupling said base means to the paging arrangement for completing a talk channel for both the stationary and portable unit; and means coupling said base means to the paging equipment for completing a page channel for both the stationary and portable units so that the units can utilize the paging equipment.
Claim 2
Dependent Claim
163 words
In a wired paging system having a plurality of stationary transceiver units for facilitating full duplex communication, and a paging arrangement coupled electrically to the plurality of stationary transceiver units for helping to interconnect them selectively in full duplex communication and for enabling them to perform paging operations via paging equipment, a wireless communication system, comprising: at least one wireless portable transceiver unit for full duplex communication with at least one of the stationary transceiver units and with the paging equipment; communication base means coupled electrically to the paging arrangement for transmitting and receiving full duplex communication messages between individual ones of the stationary transceiver units and the portable transceiver unit; means coupling said base means to the paging arrangement for completing a talk channel for both the stationary and portable unit; and means coupling said base means to the paging equipment for completing a page channel for both the stationary and portable units so that the units can utilize the paging equipment.
Claim 3
Dependent Claim
35 words
A wireless communication system according to claim 1, wherein each one of the plurality of stationary transceiver units includes paging means for generating a paging signal to help indicate that full duplex communication is desired.
Claim 4
Dependent Claim
34 words
A wireless communication system according to claim 2, wherein said at least one portable transceiver unit includes paging signal means for generating another paging signal to help indicate that full duplex communication is desired.
Claim 5
Dependent Claim
33 words
A wireless communication system according to claim 3, further comprising: paging indication means responsive to, said paging signal and said another paging signal for providing an indication that full duplex communication is desired.
Claim 6
Dependent Claim
62 words
A wireless communication system according to claim 4, further including interface means for enabling said portable transceiver unit to transmit and receive full duplex messages, wherein said communication base means is coupled electrically between said paging indication means and said interface means for transmitting and receiving full duplex communication messages between the plurality of stationary transceiver units and the portable transceiver unit.
Claim 7
Dependent Claim
42 words
A wireless communication system according to claim 5, further comprising at least another wireless portable transceiver unit for simultaneous half duplex communication with the first-mentioned portable transceiver unit and full duplex communication with at least one of said plurality of stationary units.
Claim 8
Dependent Claim
44 words
A wireless communication system according to claim 6, wherein said portable transceiver unit and said another portable transceiver unit each transmits and receives full duplex communication messages between individual ones of said plurality of stationary transceiver units and half duplex message between each other.
Claim 9
Independent Claim
122 words
A method of communication, comprising: using a plurality of stationary transceiver units disposed within a large open space room; using a plurality of portable transceiver units worn by users free to travel within said room; generating a paging signal to facilitate alerting users of the stationary transceiver units and the users of the portable transceiver units that communication is desired by at least one of the users; responding to the paging signal by indicating to at least another one of the users that said one of the users desires full duplex communication; and generating simultaneously full duplex messages between users of the portable transceiver units and users of the stationary transceivers and half duplex messages between users of the portable transceiver units.
Claim 10
Independent Claim
122 words
A method of communication, comprising: using a plurality of stationary transceiver units disposed within a large open space room; using a plurality of portable transceiver units worn by users free to travel within said room; generating a paging signal to facilitate alerting users of the stationary transceiver units and the users of the portable transceiver units that communication is desired by at least one of the users; responding to the paging signal by indicating to at least another one of the users that said one of the users desires full duplex communication; and generating simultaneously full duplex messages between users of the portable transceiver units and users of the stationary transceivers and half duplex messages between users of the portable transceiver units.
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) | 2001-07-20 | 2002-01-19 | 2002-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-07-20 | 2006-01-19 | 2006-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-07-20 | 2010-01-19 | 2010-07-21 | $7700.00 | Window Closed / Lapsed |