Apparatus and method for providing, retrieving, and using data guide information supplied in a digital vestigial sideband signal
First Claim
1. A device for identifying types of data transmitted on multiple channels of a digital broadcast signal, displaying the identified types of data transmitted on each channel, and enabling a user to access the data transmitted on a particular channel, the device comprising:
- a scanning receiver adapted to tune to the digital broadcast signal on selected channels, the digital broadcast signal including at least one digital television programming packet and at least one data packet;
a demodulator coupled to the receiver and adapted to demodulate the digital broadcast signal;
a detector coupled to the demodulator and adapted to detect the at least one data packet;
a memory coupled to the detector, the memory being adapted to store data guide software code for identifying the type of data contained in the at least one data packet and the channel on which the identified type of data is available, the data guide software further being adapted to enable the data on any channel selected by an operator to be accessed;
a processor coupled to the memory and adapted to execute the data guide software code; and
,an operator interface module coupled to the processor, the operator interface module being adapted to display the identified types of data and the channels on which the identified types of data are available, the operator interface module further being adapted to enable any displayed channel to be selected.
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Abstract
A device for provisioning, retrieving, and using data guide information transmitted in a digital broadcast signal is disclosed. A receiver receives the digital broadcast signal which includes digital television programming packets multiplexed with data packets and thereafter routes the received signal to a demodulator. The demodulator provides a demodulated signal to a detector which identifies data packets contained therein. A processor then determines the types of data in the data packets, as well as the respective channels on which the identified types of data are transmitted. The processor prepares a menu for a display screen enabling a user to select the channel of interest, and enables the user to be connected accordingly.
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Citations
31 Claims
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1. A device for identifying types of data transmitted on multiple channels of a digital broadcast signal, displaying the identified types of data transmitted on each channel, and enabling a user to access the data transmitted on a particular channel, the device comprising:
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a scanning receiver adapted to tune to the digital broadcast signal on selected channels, the digital broadcast signal including at least one digital television programming packet and at least one data packet; a demodulator coupled to the receiver and adapted to demodulate the digital broadcast signal; a detector coupled to the demodulator and adapted to detect the at least one data packet; a memory coupled to the detector, the memory being adapted to store data guide software code for identifying the type of data contained in the at least one data packet and the channel on which the identified type of data is available, the data guide software further being adapted to enable the data on any channel selected by an operator to be accessed; a processor coupled to the memory and adapted to execute the data guide software code; and
,an operator interface module coupled to the processor, the operator interface module being adapted to display the identified types of data and the channels on which the identified types of data are available, the operator interface module further being adapted to enable any displayed channel to be selected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of providing a data guide summarizing types of data transmitted in a digital broadcast signal and the channels corresponding to the types of data comprising the steps of:
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receiving the digital broadcast signal containing digital programming packets and data packets; demodulating the digital broadcast signal; detecting the data packets; storing the data guide based on information contained in the data packets; and
,displaying the data guide. - View Dependent Claims (11, 12, 14, 15, 16, 17)
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13. The method of 10 performed by a central processing unit of a personal computer, wherein the displaying step is performed using a video monitor connected to the personal computer.
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18. A data casting system comprising:
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a receiver adapted to receive a digital broadcast signal containing at least one digital television programming packet and at least one data packet; a detector coupled to the receiver and adapted to detect the at least one data packet, the detector further adapted to detect types of data transmitted within the at least one data packet and channels on which the detected types of data are available; and
,an operator interface module coupled to the detector and adapted to display the detected types of data and the channels on which the detected types of data are available. - View Dependent Claims (19, 20, 21)
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- 22. A computer readable storage medium of a digital program receiver having a data guide stored thereon, wherein the data guide contains a list of the types of data receivable by the digital program receiver and the corresponding RF channels in which the data is present.
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25. A method for controlling an error while processing data providing full information on a data broadcast in a digital receiver wherein the digital receiver identifies an application associated with a service and finds a location from which to retrieve the application, the method comprising:
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receiving the data providing full information on the data broadcast, wherein the data comprising a header and a body is repeatedly transmitted from a transmitter, and further the header comprises information which is used to identify application types; monitoring the data for the application types that the digital receiver can decode; detecting an error located in a portion of the data providing full information on the data broadcast; and discarding the portion having the detected error. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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Specification