Radio receiver for information dissemenation using subcarrier
DCFirst Claim
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1. A receiver system comprising:
- a radio tuner for demodulating data from a radio signal;
a memory for storing the demodulated data as a database;
a user interface for providing a set of hierarchical menus describing the database, and for accepting selections from the set of menus;
a controller for selecting data from the database in response to the accepted selections and outputting the selected data in an alphanumeric form; and
a speech synthesizer for converting the selected data from alphanumeric form to an analog audio signal representing spoken words.
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Abstract
A radio receiver receives FM subcarrier transmissions, and stores the transmitted textual information in a random access memory. The information is typically news, weather, sports, entertainment or other information of interest. A user interface allows selection from the memory of the stored information via a set of menus controlling a hierarchical database, so as to access particular items of information. A speech synthesizer accepts the accessed textual information items and transforms them into spoken speech. The user interface is either by voice or a single or multi-position switch allowing scanning through and selection from the menu items.
288 Citations
21 Claims
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1. A receiver system comprising:
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a radio tuner for demodulating data from a radio signal; a memory for storing the demodulated data as a database; a user interface for providing a set of hierarchical menus describing the database, and for accepting selections from the set of menus; a controller for selecting data from the database in response to the accepted selections and outputting the selected data in an alphanumeric form; and a speech synthesizer for converting the selected data from alphanumeric form to an analog audio signal representing spoken words. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for transmitting alphanumeric data via a radio signal to a receiver, comprising:
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broadcasting the radio signal; demodulating the alphanumeric data from the radio signal; determining if the data is encrypted and if encrypted, decrypting the alphanumeric data; storing the demodulated data in a memory as a database; generating a set of menus describing the database; selecting items of the alphanumeric data the set of menus; selecting from the memory portions of the stored data in response to the selected items, the portions being in alphanumeric form; and converting the selected portions from the alphanumeric form to an analog audio signal representing spoken words.
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21. A receiver system comprising:
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a radio tuner for receiving a radio signal; a demodulator within said radio tuner to detect data in the received signal; conditional access circuitry for determining whether the data is encrypted; a decryptor for decrypting any of the data that is encrypted; a memory for storing the data; a user interface for generating a set of menus describing the data, and for accepting selections from the set of menus; a controller for selecting data in response to the accepted selections and outputting the selected data in alphanumeric form; and a speech synthesizer for converting the selected data from an alphanumeric form to an analog audio signal representing spoken words.
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Specification