Abstract: The disclosed embodiments relate to a system and method for maintaining synchronization between a video signal and an audio signal that are processed using clocks that are locked. The system may comprise a component that determines at least one initial level of a buffer, a component that determines at least one current level of the buffer, and a component that determines an amount of drift by comparing the at least one initial level of the buffer to the at least one current level of the buffer and adjusts the clocks to maintain the initial midpoint level of the buffer if the amount of drift reaches a threshold level.

Abstract: A method and a system for performing trick mode features in a personal video recorder without introducing a channel change delay during normal viewing. The method includes the steps of recording a video source signal and concurrently bypassing the video source signal to a display device, without experiencing any buffering delay associated with the recording step. During trick mode operation the bypassing step can be automatically terminated and a recorded version of the video source signal can be substituted and sent to the display. The bypassing step further can include substituting, without any buffering delay, an alternate video source signal in response to a user selection of an alternate video source signal channel. A user notification can be generated to acknowledge receipt of a trick mode command. The user notification can be terminated once the step of substituting the recorded version of the video source signal has been completed.

Abstract: A digital video recording device and a method for book-marking any user selected location in a multimedia presentation that is recorded. The method includes the step of annotating without interruption during a playback operation of the digital recording device a user accessible mark corresponding to a user selected location appearing anywhere within a digitally recorded multimedia presentation. The method further includes the step of determining the user selected location based on the annotated mark, and selectively resuming playback of the multimedia presentation from the selected location. The annotation step can further include identifying an index value that uniquely identifies the user selected location, and storing the index value in a data store. The index value can be a time measurement, a frame identifier or a data quantity measurement. A user identification, a bookmark identification, a date or a time can be stored with the index value in the data store.

Abstract: A method and a system for performing trick mode features in a personal video recorder without introducing a channel change delay during normal viewing. The method includes the steps of recording a video source signal and concurrently bypassing the video source signal to a display device, without experiencing any buffering delay associated with the recording step. During trick mode operation the bypassing step can be automatically terminated and a recorded version of the video source signal can be substituted and sent to the display. The bypassing step further can include substituting, without any buffering delay, an alternate video source signal in response to a user selection of an alternate video source signal channel. A user notification can be generated to acknowledge receipt of a trick mode command. The user notification can be terminated once the step of substituting the recorded version of the video source signal has been completed.

Abstract: A system and method for partitioning storage space in a video recording system or multi-media system into a plurality of discrete partitions. Each of the discrete partitions can be allocated to a different user of the video recording system or application of the multi-media system. Furthermore, the systems are designed to allocate an amount of the storage space to each partition to eliminate hoarding of the storage space by only one user or application.