Method and apparatus for processing a received message in a communication receiver
First Claim
1. A method of processing a message received by a communication receiver comprising a memory for storing a periodically received mail-drop message and an effective length calculated therefor, the mail-drop message including an address and information having an effective length that is substantially constant from one transmission to the next when the mail-drop message is received without any uncorrectable errors, the method comprising the steps of:
- receiving a new mail-drop message;
counting uncorrectable errors in the information of the new mail-drop message as received;
thereafter calculating a new effective length for the new mail-drop message received;
storing the new mail-drop message and the new effective length calculated therefor in the memory in place of an old mail-drop message and an old effective length calculated therefor, in response to having counted in said counting step a number of uncorrectable errors less than or equal to a predetermined number;
retaining in the memory the old mail-drop message and the old effective length calculated therefor, in response to having counted in said counting step more than the predetermined number of uncorrectable errors in the information of the new mail-drop message when the new effective length is less than a predetermined fraction of the old effective length; and
storing the new mail-drop message and the new effective length calculated therefor in the memory in place of the old mail-drop message and the old effective length calculated therefor, in response to having counted in said counting step more than the predetermined number of errors in the information of the new mail-drop message when the new effective length is greater than or equal to a predetermined fraction of the old effective length.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus process (300) a message received by a communication receiver (100) having a memory (110) for storing (324) a periodically received mail-drop message including an address and information having an effective length. When a new mail-drop message is received (302), a processor (108) determines (400) whether to replace (408) an old mail-drop message received (302) and stored (324) earlier in the memory (110), in response to the information of the new mail-drop message.
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Citations
15 Claims
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1. A method of processing a message received by a communication receiver comprising a memory for storing a periodically received mail-drop message and an effective length calculated therefor, the mail-drop message including an address and information having an effective length that is substantially constant from one transmission to the next when the mail-drop message is received without any uncorrectable errors, the method comprising the steps of:
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receiving a new mail-drop message; counting uncorrectable errors in the information of the new mail-drop message as received; thereafter calculating a new effective length for the new mail-drop message received; storing the new mail-drop message and the new effective length calculated therefor in the memory in place of an old mail-drop message and an old effective length calculated therefor, in response to having counted in said counting step a number of uncorrectable errors less than or equal to a predetermined number; retaining in the memory the old mail-drop message and the old effective length calculated therefor, in response to having counted in said counting step more than the predetermined number of uncorrectable errors in the information of the new mail-drop message when the new effective length is less than a predetermined fraction of the old effective length; and storing the new mail-drop message and the new effective length calculated therefor in the memory in place of the old mail-drop message and the old effective length calculated therefor, in response to having counted in said counting step more than the predetermined number of errors in the information of the new mail-drop message when the new effective length is greater than or equal to a predetermined fraction of the old effective length. - View Dependent Claims (2, 3, 4, 5)
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6. A communication receiver for receiving a message including an address and information having an effective length, the communication receiver comprising:
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a receiver for periodically receiving a new mail-drop message having an effective length that is substantially constant from one transmission to the next when the mail-drop message is received without any uncorrectable errors; a memory coupled to said receiver for storing the new mail-drop message; a processor coupled to said receiver and coupled to said memory for controlling the communication receiver and for calculating a new effective length for the new mail-drop message received; an error/length-compare processor element for counting uncorrectable errors in the information of the new mail-drop message as received, and further for storing the new mail-drop message and the new effective length calculated therefor in the memory in place of an old mail-drop message and an old effective length calculated therefor, in response to having counted a number of uncorrectable errors less than or equal to a predetermined number, and further for retaining in the memory the old mail-drop message and the old effective length calculated therefor, in response to having counted more than the predetermined number of uncorrectable errors in the information of the new mail-drop message when the new effective length is less than a predetermined fraction of the old effective length; and a negligible-errors processor element coupled to the error/length-compare processor element for storing the new mail-drop message and the new effective length calculated therefor in the memory in place of the old mail-drop message and the old effective length calculated therefor, in response to having counted more than the predetermined number of errors in the information of the new mail-drop message when the new effective length is greater than or equal to a predetermined fraction of the old effective length. - View Dependent Claims (7, 8, 9, 10)
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11. A communication system, comprising:
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a transmitter for periodically transmitting a new mail-drop message comprising an address and information having a substantially invariant length; a controller coupled to said transmitter for formatting the mail-drop message and controlling the periodic transmissions thereof; and a communication receiver coupled to said transmitter for receiving the new mail-drop message, wherein the information of the mail-drop message as received has an effective length that is substantially constant from one transmission to the next when the mail-drop message is received without any uncorrectable errors, said communication receiver comprising; a receiver for receiving the new mail-drop message; a memory coupled to said receiver for storing the new mail-drop message; a processor coupled to said receiver and coupled to said memory for controlling said communication receiver and for calculating a new effective length for the new mail-drop message received; an error/length-compare processor element for counting uncorrectable errors in the information of the new mail-drop message as received, and further for storing the new mail-drop message and the new effective length calculated therefor in the memory in place of an old mail-drop message and an old effective length calculated therefor, in response to having counted a number of uncorrectable errors less than or equal to a predetermined number, and further for retaining in the memory the old mail-drop message and the old effective length calculated therefor, in response to having counted more than the predetermined number of uncorrectable errors in the information of the new mail-drop message when the new effective length is less than a predetermined fraction of the old effective length; and a negligible-errors processor element coupled to the error/length-compare processor element for storing the new mail-drop message and the new effective length calculated therefor in the memory in place of the old mail-drop message and the old effective length calculated therefor, in response to having counted more than the predetermined number of errors in the information of the new mail-drop message when the new effective length is greater than or equal to a predetermined fraction of the old effective length. - View Dependent Claims (12, 13, 14, 15)
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Specification