Methods and apparatus for bandwidth reduction in a two-way paging system
First Claim
1. A two-way paging system comprising:
- a base station comprising;
(a) a receiver;
(b) a transmitter; and
(c) a processor programmed to analyze an original message lacking codes to identify portions of the original message as reply components and to compute from the original message reply codes corresponding to respective reply components of the original message and to transmit a reply-encoded message incorporating the original message and the reply codes; and
at least one pager device comprising;
(a) a receiver for receiving the reply-encoded message;
(b) a transmitter;
(c) a display;
(d) a keypad; and
(e) a processor programmed to drive the display to display the original message and to display identification codes identifying the reply components of the original message adjacent the reply components, and programmed to respond to a signal generated by pressing a key on the keypad, wherein pressing the key indicates a selection of one of the reply components, and wherein the pager processor responds by identifying the reply code corresponding to the selected one of the reply components and by transmitting a reply message incorporating the reply code corresponding to the selected one of the reply components.
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Accused Products
Abstract
Method and apparatus for transmitting messages in a two-way paging system are disclosed. Reply codes corresponding to portions of a message to be transmitted by a base station and received by a mobile pager device are computed either at the base station or at the pager according to various embodiments. The reply codes, which are typically shorter and require less bandwidth than the full text to which they correspond, are incorporated by the pager into reply messages when the user of the pager device wishes to refer to portions of the text of the received message in his reply. The present invention advantageously allows the user of a pager device to respond to a received message by transmitting a reply message that incorporates part of the text of the original received message without significantly increasing the bandwidth required to transmit the response.
206 Citations
48 Claims
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1. A two-way paging system comprising:
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a base station comprising; (a) a receiver; (b) a transmitter; and (c) a processor programmed to analyze an original message lacking codes to identify portions of the original message as reply components and to compute from the original message reply codes corresponding to respective reply components of the original message and to transmit a reply-encoded message incorporating the original message and the reply codes; and at least one pager device comprising; (a) a receiver for receiving the reply-encoded message; (b) a transmitter; (c) a display; (d) a keypad; and (e) a processor programmed to drive the display to display the original message and to display identification codes identifying the reply components of the original message adjacent the reply components, and programmed to respond to a signal generated by pressing a key on the keypad, wherein pressing the key indicates a selection of one of the reply components, and wherein the pager processor responds by identifying the reply code corresponding to the selected one of the reply components and by transmitting a reply message incorporating the reply code corresponding to the selected one of the reply components. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A pager device for use in a two-way paging system comprising:
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a receiver for receiving a reply-encoded message comprising (a) an original message having reply components and (b) reply codes corresponding to the respective reply components; a transmitter; a display; a keypad comprising a plurality of soft keys and a key for scrolling the display; and a processor programmed to drive the display to display the original message, to display identification codes identifying the reply components of the message adjacent the reply components, and to display a soft key status line on the display for indicating the correspondence between the plurality of soft keys and the reply components, the processor changing said correspondence as necessary as the display is scrolled in response to activation of the key for scrolling the display, and programmed to respond to a signal generated by pressing a particular soft key on the keypad, wherein pressing said soft key indicates a selection of one of the reply components, and wherein the processor responds by identifying the reply code corresponding to the selected one of the reply components and by transmitting a reply message incorporating the reply code corresponding to the selected one of the reply components. - View Dependent Claims (10, 11)
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12. A two-way paging system comprising:
- a base station for transmitting an original message lacking codes to identify portions of the original message as reply components; and
at least one pager device comprising; (a) a receiver for receiving said original message transmitted from the base station; (b) a transmitter; (c) a display; (d) a keypad; and (e) a processor programmed to drive the display to display the original message, to analyze said original message and to identify the reply components, and to display identification codes identifying the reply components adjacent the reply components, and wherein the processor is further programmed to respond to a signal generated by pressing a key on the keypad, wherein pressing the key indicates a selection of one of the reply components, and wherein the processor responds by computing a reply code corresponding to the selected one of the reply components and by transmitting a reply message incorporating the reply code corresponding to the selected one of the reply components. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
- a base station for transmitting an original message lacking codes to identify portions of the original message as reply components; and
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22. A pager device for use in a two-way paging system comprising:
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a receiver for receiving an original message lacking codes to identify portions of the original message as reply components; a transmitter; a display; a keypad; and a processor programmed to analyze said original message and to identify the reply components to drive the display to display the original message and to display identification codes identifying the reply components adjacent the reply components, and wherein the processor is further programmed to respond to a signal generated by pressing a key on the keypad, wherein pressing the key indicates a selection of one of the reply components, and wherein the processor responds by computing a reply code corresponding to the selected one of the reply components and by transmitting a reply message incorporating the reply code corresponding to the selected one of the reply components. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of transmitting a message in a two-way paging system comprising the steps of:
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receiving a request to transmit an original message lacking codes to identify portions of the original message as reply components to a pager; utilizing a processor to compute automatically reply codes from an analysis of the original message corresponding to the respective reply components; transmitting a reply-encoded message incorporating the original message and the reply codes to the pager; displaying on the pager the original message and identification codes identifying the reply components of the original message; identifying the reply code corresponding to a specified one of the reply components in response to a signal generated by a user of the pager pressing a key wherein pressing the key corresponds to a selection of the specified one of the reply components; and transmitting from the pager a reply message incorporating the reply code corresponding to the specified one of the reply components. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39)
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40. A method of transmitting a message in a two-way paging system comprising the steps of:
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transmitting an original message lacking codes to identify portions of the original message as reply components to a pager; analyzing the original message at the pager to identify the reply components; displaying on the pager the original message and identification codes identifying the reply components of the original message; computing from the original message a reply code corresponding to a specified one of the reply components in response to a signal generated by a user of the pager pressing a key wherein pressing the key corresponds to a selection of the specified one of the reply components; and transmitting from the pager a reply message incorporating the reply code corresponding to the specified one of the reply components. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48)
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Specification