Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
126 words
A wireless paging system for transmitting messages to paging receivers, said system comprising: A. a central site including a central transmitter for transmitting paging messages; B. A plurality of remote sites, each including: 1) means for receiving said paging messages from said central site, 2) means for retransmitting said paging messages to said paging receivers on the same carrier frequency as that of the transmissions from said central site, C. means for effecting said transmissions from said central site on a time division basis with the transmissions from said remote sites, the transmissions from said central site being at a high data rate relative to the transmissions from said remote sites, whereby most of the transmission time is utilized for the transmissions to said paging receivers.
Claim 2
Dependent Claim
126 words
A wireless paging system for transmitting messages to paging receivers, said system comprising: A. a central site including a central transmitter for transmitting paging messages; B. A plurality of remote sites, each including: 1) means for receiving said paging messages from said central site, 2) means for retransmitting said paging messages to said paging receivers on the same carrier frequency as that of the transmissions from said central site, C. means for effecting said transmissions from said central site on a time division basis with the transmissions from said remote sites, the transmissions from said central site being at a high data rate relative to the transmissions from said remote sites, whereby most of the transmission time is utilized for the transmissions to said paging receivers.
Claim 3
Dependent Claim
76 words
The apparatus of claim 1 and further including error detector means at each remote site for detecting a predetermined error condition and for generating an alarm condition signal responsive thereto, means for applying said alarm condition signal to a modulator for transmitting an alarm signal back to said central site on the same frequency a said carrier frequency, and means at said central site for receiving an alarm signal and for indicating the presence of same.
Claim 4
Dependent Claim
40 words
The system defined in claim 1 including means at each of said remote sites for synchronizing the transmissions therefrom to the transmissions from said central transmitter, whereby the relative times of the retransmissions from said remote sites do not vary.
Claim 5
Dependent Claim
69 words
The system defined in claim 3 in which each of said remote sites includes means for delaying the retransmissions from that site relative to the receipt of the transmissions from said central site, whereby the relative times of the retransmissions from the remote sites are such as to provide essentially in-phase modulation of the signals that the paging receivers receive in regions where signals from the remote sites overlap.
Claim 6
Dependent Claim
89 words
The system defined in claim 1 which includes the capability of transmitting both analog and digital information to said paging receivers from said remote sites, and wherein A. said central site includes a source of analog material, means for covering said analog material to digital format and means for modulating the central site transmitter with said digitally formatted material, and B. each of said remote sites includes means for covering the digitally converted analog material received thereat to analog form for modulation of the retransmissions from said remote site.
Claim 7
Dependent Claim
55 words
The system defied in claim 5 including means at said central site for transmitting a mo signal indicative of the presence of said analog material and means at each of said remote sites responsive to the receipt of said mode signal for converting the digital signals received from said remote site to said analog form.