Digital TV system with PVR function and method for making stream jump therein
AssigneeLG Electronics Inc.
InventorsTae Hyoung Kim, Eunsam Kim
Life of this patent
Estimating the term…
Abstract
Digital TV system with a PVR function and method for making a stream jump therein, wherein, upon reception of a stream jump order from a user, searching the storage medium for a target GOP the user, or a system designated, changing a reproducing position to a TP next to a TP having a picture header among TPs in a prior picture positioned right forward of the searched target GOP, and starting reproduction from the changed reproducing position, thereby preventing occurrence of a decoding error while maintaining continuity of CC values in decoding TPs of a target GOP, to permit no broking of picture even in the stream jump.
Claims20
A digital TV system with a personal video recorder (PVR) function, comprising:
- a storage medium for storing a broadcasting signal if recording, or a time shift function is set;
- a key input part for providing a stream jump order through a user;
- a stream jump controller for receiving a stream jump order from the key input part, searching the storage medium for a target GOP the user or a system designated, and changing a reproducing position to a transport packet (TP) next to a TP having a picture header among TPs in a prior picture positioned right forward of the searched target GOP;
- and
- a decoder for determining decoding of every TP starting from the TP at the reproducing position changed at the stream jump controller, and carrying out decoding according to a result of the determination.
A method for making a stream jump in a digital TV with a personal video recorder (PVR) function, having a storage medium for storing a broadcasting signal, and a decoder for decoding a transport stream (TS) reproduced at the storage medium in a TS packet unit, the method comprising the steps of:
- (a) receiving a stream jump order from a user;
- (b) upon reception of the stream jump order, searching the storage medium for a target GOP the user or a system designated, and changing a reproducing position to a transport packet (TP) next to a TP having a picture header among TPs in a prior picture positioned right forward of the searched target GOP;
- and
- (c) determining decoding of every TP starting from the TP at the reproducing position, and carrying out decoding according to a result of the determination.
A method for making a stream jump in a digital TV with a personal video recorder (PVR) function, having a storage medium for storing a broadcasting signal, and a decoder for decoding a transport stream (TS) reproduced at the storage medium in a TS packet unit, the method comprising the steps of:
- (a) receiving a stream jump order from a user;
- (b) upon reception of a stream jump order from the key input part, searching the storage medium for a target GOP the user or a system designated, and changing a reproducing position to a transport packet (TP) having continuity with a continuity counter (CC) value of a TP at a position before making a stream jump among TPs in a prior picture positioned right forward of the searched target GOP;
- and
- (c) determining decoding of every TP starting from the TP at the reproducing position, and carrying out decoding according to a result of the determination.
Dependencies are inferred from the claim text.