Selective call receiver having confidential message read protection
First Claim
Patent Images
1. A selective call receiver having a selective call address assigned thereto, the selective call receiver comprising:
- means for receiving a message comprising an address portion, a message portion, and a control portion, the address portion corresponding to the selective call address assigned to the selective call receiver;
means for storing at least said message portion of the message;
means for determining in response to said control portion whether the stored portion of the message requires access authorization; and
access authorization means coupled to said determining means and said storing means for requiring access authorization before retrieving the stored portion of the message from the storing means if the determining means determines the stored portion of the message requires access authorization, and for not requiring access authorization before retrieving the stored portion of the message from the storing means if the determining means determines the stored portion of the message does not require access authorization.
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Abstract
A selective call receiver 10 requires an access authorization code prior to presenting selected messages and to override a lockout mode.
77 Citations
13 Claims
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1. A selective call receiver having a selective call address assigned thereto, the selective call receiver comprising:
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means for receiving a message comprising an address portion, a message portion, and a control portion, the address portion corresponding to the selective call address assigned to the selective call receiver; means for storing at least said message portion of the message; means for determining in response to said control portion whether the stored portion of the message requires access authorization; and access authorization means coupled to said determining means and said storing means for requiring access authorization before retrieving the stored portion of the message from the storing means if the determining means determines the stored portion of the message requires access authorization, and for not requiring access authorization before retrieving the stored portion of the message from the storing means if the determining means determines the stored portion of the message does not require access authorization. - View Dependent Claims (2, 3)
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4. A selective call receiver having a predetermined address assigned thereto, the selective call receiver comprising:
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operating mode selection means for selecting either a protected or unprotected mode as the current operating mode; receiver means for receiving messages comprising an address portion, a message portion, and a control portion; determining means for determining whether the messages are authorized access messages or non-authorized access messages in response to the control portion; memory means for storing the message portions in response to the address portions corresponding to the predetermined address; and access authorization means for providing access to the message portions of the authorized access messages when operating in the unprotected mode in response to a first predetermined authorization code being inputted by a user, the message portions of the non-authorized access messages being accessible without an authorization code in the unprotected mode, and for providing access to the message portions of the authorized access messages and the message portions of the non-authorized access messages in the protected mode in response to a second predetermined authorization code being inputted by the user. - View Dependent Claims (5)
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6. A method for controlling access to messages received in a selective call receiver comprising the steps of:
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receiving a message comprising an address portion, a message portion, and a control portion, the address portion corresponding to a selective call address assigned to the selective call receiver; identifying the message as an access authorized message if the control portion identifies the message as requiring access authorization; determining whether messages are access authorized messages or non-access authorized messages prior to presentation; presenting non-access authorized messages; and presenting access authorized messages only if a user inputted code corresponds to a predetermined code.
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7. A method for presenting messages stored in a selective call receiver comprising the steps of:
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determining whether the selective call receiver is operating in a restricted access mode; determining whether stored messages to be presented require access authorization prior to presentation of the messages; selectably presenting the messages stored if the selective call receiver is not operating in the restricted access mode and the messages stored do not require access authorization prior to presentation; presenting a request for an authorization code if the selective call receiver is operating in the restricted access mode or the messages stored require access authorization prior to presentation; receiving an authorization code; comparing the received authorization code to a predetermined authorization code; and selectably presenting the messages stored if the authorization code received corresponds to the predetermined authorization code if the selective call receiver is operating in the restricted access mode or the messages stored require access authorization prior to presentation.
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8. A selective call receiver comprising:
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receiving means for receiving and demodulating radio frequency (RF) signals; decoding means coupled to said receiving means for decoding said demodulated signals to derive selective call messages therefrom, each of said selective call messages comprising a control portion and a message portion; memory means for storing the message portions of said selective call messages; access authorization means for determining whether said stored message portions require access authorization in response to the corresponding control portions; output means for presenting said stored message portions; and output handling means for providing said stored message portions from said memory means to said output means if said determining means determines that said stored message portions do not require access authorization and for providing said stored message portions from said memory means to said output means in response to a first predetermined user input if said determining means determines that said selective call messages require access authorization. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification