Panasonic AV-HS450N manual Appendix glossary

Appendix (glossary)

Defined below are the terms used in this manual.

Word	Explanation
AB Bus system	A bus control mode. By executing a transition, the A bus and B bus signals
	are output to the program images alternately.
Ancillary Data	The auxiliary data other than the video signals which is transmitted inside
	the data stream of the video serial interface. The data superimposed on the
	vertical blanking period is referred to as the V ancillary data (VANC).
Aspect ratio	The ratio between the horizontal and vertical dimensions of an image or
	screen.
	It is 16:9 for the HD format and 4:3 for the SD format.
AUX	A spare bus which can be switched by signals other than the main line
[Auxiliary Bus]	output signals.
AVDL	A function to automatically adjust the input image signal phase to the
[Automatic Video Delayline]	horizontal synchronization reference signal phase.
BB	The black burst signal. A full-screen black level composite signal which is
[Black burst]	used as the reference signal for gen-lock.
Border	The area or margin that is added to the edge of a wipe or key.
	Its width and color can be adjusted. The defocusing of the area around a
	border is referred to as the soft effect.
Chroma key	This refers to the function for creating the key signals based on the color
	information of the video signals and combining the keys.
Clip	The threshold level of the luminance when key signals are created from a
	key source.
Color Background	The signals which are output from the internal color generator and used as
	the background image.
Cut	This refers to the effect where the display is instantly switched to the next
	image.
Density	A parameter which is used to adjust the density of the key signals.
Dot by Dot	This treats images as actual size (1) images. With PinP, it allows SD
	images to be combined with HD images with no accompanying deterioration
	in the images themselves.
Down Converter	This is the function that converts material in the HD format into the SD
	format.
DSK [Downstream Key]	This refers to the key combination process which is performed at the end of
	the mix effect. The key is always combined with the foremost image.
DVE [Digital Video Effect]	This refers to the transition patterns accompanying size reductions or slide
	effects.
DVI	A digital video interface standard.
[Digital Visual Interface]	DVI-I can handle both digital signals and analog signals.
Embedded Audio	This refers to the audio data packets which are transferred inside the data
	stream of the video serial interface.
Flip Flop system	A bus control mode. The signals selected by the program bus are always
(PGM/PST system)	output as the program images. By executing a transition, the program bus
	and preset bus signals are switched over.
Flying Key	This function uses DVE effects to move, expand or reduce key signals.

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