EP0321698A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Paging system with acknowledgement
Assignee: Motorola Solutions Inc
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Filing: 1988-11-17
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Granted: —
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Expires: 2008-11-17
Abstract
Abstract A paging system is provided having page transmission means (15) responsive to a message origination device (12) for transmitting selective call paging signals and messages. A query signal is also transmitted a predetermined minimum time period from the corresponding paging signal. A plurality of transceivers (18) are provided responsive to the selective call paging signals and messages, and further responsive to the query signals for enabling the generating and transmitting of a response signal. Receivers (20) are provided for receiving the transmitted response signals. The received response signals are then delivered to the message origination device from which the original message originated.
Inventors
- 👤 Walter J. Grandfield
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 09:07
CPC Classifications
H; H04; H04W; H04W88/00; H04W88/18; H04W88/185; G; G08; G08B; G08B3/00; G08B3/10; G08B3/1008; G08B3/1016
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
126 words
A paging system comprising: page transmission means, responsive to a message origination device, for transmitting selective call signals and messages; means for generating query signals delayed at least a minimum predetermined time period from the corresponding selective call signals, said generating means coupled to said page transmission means for transmitting said query signals; a plurality of portable selective call transceivers responsive to the selective call signals for receiving the messages; said portable transceivers further having means for enabling the generating and transmitting of response signals in response to said transmitted query signals being received; receiver means capable of receiving said transmitted response signals from said portable transceivers; and means, responsive to said receiver means, for contacting said message origination device to deliver said received response signals.
Claim 2
Dependent Claim
126 words
A paging system comprising: page transmission means, responsive to a message origination device, for transmitting selective call signals and messages; means for generating query signals delayed at least a minimum predetermined time period from the corresponding selective call signals, said generating means coupled to said page transmission means for transmitting said query signals; a plurality of portable selective call transceivers responsive to the selective call signals for receiving the messages; said portable transceivers further having means for enabling the generating and transmitting of response signals in response to said transmitted query signals being received; receiver means capable of receiving said transmitted response signals from said portable transceivers; and means, responsive to said receiver means, for contacting said message origination device to deliver said received response signals.
Claim 3
Dependent Claim
65 words
The paging system according to claim 1 wherein said page transmission means comprises: a terminal, responsive to the message origination device for formatting the selective call signals and messages, said terminal further being responsive to said receiver means for contacting said message origination device to deliver said received response signals; and a transmitter for transmitting the selective call signals and messages to the portable transceivers.
Claim 4
Dependent Claim
35 words
The paging system according to claim 2 wherein said transmitter transmits the selective call signals and messages on a first frequency channel and said portable transceiver transmits said query signal on a second frequency channel.
Claim 5
Dependent Claim
36 words
The paging system according to claim 1 wherein said portable transceiver further comprises: means responsive to the selective call signals for enabling the generating of response signals; and first memory means for storing said response signals.
Claim 6
Dependent Claim
47 words
The paging system according to claim 1 wherein said receiver means comprises: one or more receivers for receiving the transmitted response signals; and receiver voting means coupled to said receivers and to said terminal means for selecting the one receiver having the highest response signal output level.
Claim 7
Independent Claim
130 words
A method for delivering a response signal to a message origination device, the response signal being transmitted by a portable transceiver after receiving a transmitted selective call signal and a message from a transmission means, said method comprising the steps of: contacting the message origination device; generating and transmitting a query signal by the transmission means, the query signal transmission delayed at least a minimum predetermined time period from the transmission of the selective call signal and message; receiving the transmitted query signal by the portable transceiver for effecting the generating and transmitting of the response signal; and receiving the response signal transmitted from the portable transceiver by a separate receiver operatively coupled to the transmission means for effecting the delivery of the response signal to the message origination device.
Claim 8
Independent Claim
130 words
A method for delivering a response signal to a message origination device, the response signal being transmitted by a portable transceiver after receiving a transmitted selective call signal and a message from a transmission means, said method comprising the steps of: contacting the message origination device; generating and transmitting a query signal by the transmission means, the query signal transmission delayed at least a minimum predetermined time period from the transmission of the selective call signal and message; receiving the transmitted query signal by the portable transceiver for effecting the generating and transmitting of the response signal; and receiving the response signal transmitted from the portable transceiver by a separate receiver operatively coupled to the transmission means for effecting the delivery of the response signal to the message origination device.
Claim 9
Dependent Claim
53 words
The method of according to claim 14 further comprising the steps of: receiving the response signal transmitted from the portable transceiver; storing the response signal in a first memory means; contacting the message origination device; and recovering the stored response signal from the first memory means for delivery to the message origination device.
Claim 10
Dependent Claim
40 words
The method according to claim 14 further comprising the steps of: generating and storing the response signal in the portable transceiver after receiving the message; and recovering and transmitting the stored response signal in response to receiving the query signal.
Claim 11
Dependent Claim
73 words
The method according to claim 14 further comprising the steps of: monitoring the number of selective call signals and messages being input from message origination devices for transmission in a predetermined time period; suspending the generating of the query signal when the number exceeds a predetermined value; monitoring the number for a predetermined time period; and generating and transmitting the query signal when the number is reduced or after the predetermined time interval.
Claim 12
Dependent Claim
51 words
The method according to claim 15 further comprising the steps of: suspending the transmission of the query signal upon failing to contact the message origination; waiting a predetermined time period before attempting to recontact the message origination device; and generating and transmitting the query signal after contacting the message origination device.
References Cited (Backward Citations)
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