Setting Time Data

AJ-HPX2000 supports time codes, user bits, date, and time (real time) data, which are recorded as data for the sub-code area, VIDEO AUX area, and clip metadata files. It also includes a CTL counter and camera ID.

Description of time data

Time code

The TCG switch can be used to switch between Rec run and free run.

Free run: The time code always advances even when the power is turned off. It can be handled as time. It can be slaved to the time code input through the TC IN or DVCPRO/DV connector.

Rec run: The time code is recorded as sequential values regenerated as the time code for a clip recorded on a P2 card.

User bits

The camera-recorder separately includes two types of user bits: one (UB) is recorded in the sub-code area and the other (VITC UB) in the VIDEO AUX area. Each user bits can be recorded as any of the following: a user defined value, time, date, same value as the time code, frame rate information for camera shooting, externally input value (through the TC IN or DVCPRO/DV connector), and value regenerated as the user bits recorded in a clip on a P2 card.

The camera-recorder includes only one user defined value. If user defined values are selected for both the UB and VITC UB, then the same value is used.

Types of UB can be selected in UB MODE and types of VITCUB can be selected in VITC UB, respectively. However, in the following cases, these are fixed to the frame rate information of the editing machines (editing software for PCs).

zIn 720P mode, both the UB and VITC UB are always frame rate information.

zFor recoding 24P/24PA in 1080i or 480i mode, VITC UB is fixed to frame rate information.

zIn Native mode, VITC UB is fixed to frame rate information.

CTL counter

The CTL counter will measure total recording time after resetting in the recording operation. On the other hand, this value is the count time and sets the start point of a clip that can be played back. This can be used to find the current playback position.

Camera ID

The camera ID can be set with 10 characters a3 lines, which can be superimposed on the color bar video. It can be also superimposed along with date and time data.

Recording for Settings and Adjustments

Date and time (real time)

The built-in clock maintains the date and time. When the GPS unit AJ-GPS910G is installed, the built-in clock is corrected with accurate date and time information from the GPS. This clock is used to store the date and time while the power is turned off and as the time for the user bits and date data, as well as the reference for file generation times during clip recording, which determine the sorting order of thumbnails and the order of playback. It is also used to generate clip metadata and UMIDs (Unique Material Identifiers) in the VIDEO AUX area.

Adjustments and Settings for Recording : Setting Time Data 55