Broadcast signal and receiver and method of decoding digital broadcast signal
First Claim
1. A method of processing a re-transmission service in a digital broadcast receiver, the method comprising:
- receiving a re-transmission service from a re-transmitter, wherein the re-transmission service includes a digital broadcast signal transmitted from a broadcast transmitter; and
decoding the received re-transmission service, wherein the step of decoding includes;
being determined based upon identification information identifying the re-transmitter and indicating whether the received re-transmission service is decoded in the digital broadcast receiver or not,comparing an amplitude of a broadcasting signal including the identification information with a predefined value when the re-transmission service is identified as a charged service, andallowing a decoder to decode the re-transmission service data when the amplitude of the signal is greater than the predefined value, andwherein the re-transmitter inserts new information to add the identification information in the retransmission service.
1 Assignment
0 Petitions
Accused Products
Abstract
A tuner included in a digital broadcast receiver tunes a broadcast signal from a transmitter via a re-transmitter. A demodulator demodulates the broadcast signal, and an identification information detector detects identification information of a re-transmission service provided by the re-transmitter from the demodulated broadcast signal. A decoder arranged to decode the modulated broadcast signal, and a controller controls operation of the decoder based upon the identification information detected by the identification information detector. The identification information of the re-transmitter may directly include information identifying a type of the re-transmission service (e.g., a free or charged service) or may include a unique ID number of the re-transmission service, which could be used by the broadcast receiver to determine service type.
21 Citations
17 Claims
-
1. A method of processing a re-transmission service in a digital broadcast receiver, the method comprising:
-
receiving a re-transmission service from a re-transmitter, wherein the re-transmission service includes a digital broadcast signal transmitted from a broadcast transmitter; and decoding the received re-transmission service, wherein the step of decoding includes;
being determined based upon identification information identifying the re-transmitter and indicating whether the received re-transmission service is decoded in the digital broadcast receiver or not,comparing an amplitude of a broadcasting signal including the identification information with a predefined value when the re-transmission service is identified as a charged service, and allowing a decoder to decode the re-transmission service data when the amplitude of the signal is greater than the predefined value, and wherein the re-transmitter inserts new information to add the identification information in the retransmission service. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A digital broadcast receiver processing a re-transmission service comprising:
-
a receiving unit for receiving a re-transmission service from a re-transmitter, the transmission service includes a digital broadcast signal transmitted from a broadcast transmitter; a demodulator for demodulating the received re-transmission service; a decoder for decoding the demodulated re-transmission service; and a controller for controlling an operation of the decoder based upon identification information identifying the re-transmitter and indicating whether the received re-transmission service is decoded in the digital broadcast receiver or not, wherein the re-transmitter inserts new information to add the identification information in the retransmission service, and the controller allows the decoder to decode the re-transmission service data when the re-transmission service is identified as a charged service and an amplitude of a signal including the identification information is greater than a predefined value. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
-
-
16. A method of processing a re-transmission service in a digital broadcast receiver, the method comprising:
-
receiving a re-transmission service from a re-transmitter, wherein the re-transmission service carries a digital broadcast signal transmitted from a broadcast transmitter and identification information identifying a unique identifier (ID) number of the re-transmitter inserted by the re-transmitter; determining whether the re-transmitter provides a charged service from a service type identified by information corresponding to the received identification information in a memory; determining whether the digital broadcast receiver is to a subscriber of the charged service if the re-transmitter provides the charged service; and decoding the received re-transmission service, if it is determined that the digital broadcast receiver is to a subscriber of the charged service, wherein the step of decoding includes; comparing an amplitude of a broadcasting signal including the identification information with a predefined value when the re-transmission service is identified as a charged service, and allowing a decoder to decode the re-transmission service data when the amplitude of the signal is greater than the predefined value, wherein the digital broadcast receiver previously stores information identifying a service type of the re-transmitter, and wherein the service type of the re-transmitter is any one of a charged service and a free service.
-
-
17. A digital broadcast receiver processing a re-transmission service comprising:
-
a receiving unit for receiving a re-transmission service from a re-transmitter, wherein the re-transmission service carries a digital broadcast signal transmitted from a broadcast transmitter and identification information identifying a unique identifier (ID) number of the re-transmitter inserted by the re-transmitter; a demodulator for demodulating the received re-transmission service; a memory; a controller for controlling to determine whether the re-transmitter provides a charged service from a service type identified by information corresponding to the received identification information in the memory, and whether the digital broadcast receiver is to a subscriber of the charged service if the re-transmitter provides the charged service, and the controller allows a decoder to decode the re-transmission service data when the re-transmission service is identified as a charged service and an amplitude of a signal including the identification information is greater than a predefined value and the decoder for decoding the received re-transmission service, if it is determined that the broadcast receiver is to a subscriber of the charged service, wherein the digital broadcast receiver previously stores information identifying a service type of the re-transmitter, and wherein the service type of the re-transmitter is any one of a charged service and a free service.
-
Specification