Paging system with transmission protocol compatible with analog and digital transmitters
First Claim
1. A paging system comprising:
- (a) a transmitter for transmitting pages which are comprised of characters with the characters of each page modulating a carrier which is broadcast by the transmitter, the transmitter utilizing one of an analog transmission protocol or a digital transmission protocol to transmit other pages and a transmission protocol different from the analog or digital transmission protocol but compatible with the transmitter being used to transmit other pages with the analog or digital transmission protocols;
(b) means for receiving pages to be broadcast by the transmitter;
(c) a memory, coupled to the means for receiving, for storing the received pages to be broadcast; and
(d) control means, coupled to the memory and to the transmitter, for encoding each character of each page with the different transmission protocol by utilizing a plurality of frequencies each encoding a different value with each character being encoded with at least one value and for providing the encoded characters in a page to the transmitter for broadcast by the transmitter.
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Accused Products
Abstract
A paging network is disclosed which utilizes a plurality of distributed switches to transmit pages on a non-real time basis to achieve efficient and low cost transmission. Each of the switches processes packets of pages received from the network. Each of the switches also processes pages into packets of pages to be transmitted to another switch in the network or into batches of pages to be transmitted by a local paging service if the switch is a local switch. The network dynamically programs the reception channel(s) of the paging receivers in response to traffic conditions of a local switch or in accordance with service options specified by a subscriber to a local paging service. The digits of the paging receiver identification code are transmitted in an order of increasing significance to conserve battery life of the paging receivers. Pages may be initiated by placing a local call to any lata switch in the network and service options may be varied by placing of a local call to a lata switch.
28 Citations
26 Claims
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1. A paging system comprising:
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(a) a transmitter for transmitting pages which are comprised of characters with the characters of each page modulating a carrier which is broadcast by the transmitter, the transmitter utilizing one of an analog transmission protocol or a digital transmission protocol to transmit other pages and a transmission protocol different from the analog or digital transmission protocol but compatible with the transmitter being used to transmit other pages with the analog or digital transmission protocols; (b) means for receiving pages to be broadcast by the transmitter; (c) a memory, coupled to the means for receiving, for storing the received pages to be broadcast; and (d) control means, coupled to the memory and to the transmitter, for encoding each character of each page with the different transmission protocol by utilizing a plurality of frequencies each encoding a different value with each character being encoded with at least one value and for providing the encoded characters in a page to the transmitter for broadcast by the transmitter. - View Dependent Claims (2, 9, 10, 11, 12, 13, 14, 15)
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3. A paging system in accordance with 2 wherein:
each value is encoded as a different audio frequency. - View Dependent Claims (4, 5, 6, 7, 8)
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16. A paging system comprising:
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(a) a transmitter associated with a paging service for transmitting pages which are each comprised of an identification number having multiple digits which identify a paging receiver to receiver a page and a plurality of characters with the identification number and the characters modulating a carrier which is broadcast by the transmitter; (b) means for receiving pages to be broadcast by the transmitter; (c) a memory, coupled to the means for receiving, for storing the received pages to be broadcast; and (d) control means, coupled to the memory and the transmitter, for causing individual pages stored in the memory to be read out and transmitted to the transmitter for transmission to a paging receiver; and (e) the transmitter transmits the digits of the identification number in an order of increasing significance with a least significant digit of the identification code being first followed by digits with an increasing significance followed by a most significant digit of the identification number followed by the characters of the page;
whereby battery consumption of a paging receiver receiving the transmitted paging receiver identification code of a page in determining that the page is not addressed to the paging receiver is minimized by the paging receiver comparing digits of the transmitted paging receiver identification code with corresponding stored digits of a paging receiver identification code until a mismatch of a digit is found at which time a tuner of the paging receiver is turned off. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A paging system for connection to a transmitter for transmitting pages which are comprises of characters with the characters of each page modulating a carrier which is broadcast by the transmitter, the transmitter also being used to transmit other pages utilizing one of an analog transmission protocol or a digital transmission protocol comprising:
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(a) means for receiving pages which are to be broadcast by the transmitter with a transmission protocol different than the analog and digital transmission protocols but compatible with the transmitter being used to transmit other pages with the analog or digital transmission protocol; (b) a memory, coupled to the means for receiving, for storing characters of the received pages to be broadcast by the transmission protocol different from the analog and digital transmission protocols; and (c) control means, coupled to the memory and to the transmitter, for encoding each character of the stored page with the transmission protocol different than the analog and digital transmission protocols by utilizing a plurality of frequencies each encoding a different value with each character being encoded with at least one value.
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Specification