Decoding Apparatus With Dual System Time Clock Counters

The patent divides the single system time clock counter into two separate counters: one for mainstream data and one for sub-audio data. This segmentation allows independent time management for each data type, enabling continuous audio playback even during forward or reverse playback operations on the main video stream.

The patent introduces a dual-time-clock dimension to the decoding system. By adding another time clock counter specifically for sub-audio data, the system gains an additional temporal dimension that operates independently from the mainstream data timing, thus resolving the contradiction between structural simplicity and audio continuity.

The patent segments the time clock functionality into separate counters for mainstream and sub-audio data. This allows the mainstream video decoding to be synchronized through its dedicated time clock without disrupting the sub-audio playback continuity maintained by its own independent time clock.

The patent introduces separate time clock counters as intermediary timing mechanisms that mediate between the playback control and the actual decoding processes. The sub-audio time clock acts as an intermediary that shields audio playback from disruptions caused by mainstream video synchronization updates.

The patent segments the time management into separate counters that can operate independently. When users perform forward or reverse playback operations, the mainstream data time clock can be adjusted for navigation while the sub-audio data time clock continues to advance independently, maintaining audio continuity despite playback direction changes.

The patent makes the time clock system dynamic by allowing the mainstream and sub-audio time clocks to operate with different update behaviors. The sub-audio time clock dynamically maintains continuous progression regardless of mainstream playback direction changes, enabling both user navigation flexibility and audio continuity.