Panasonic AV-HS300 Operating Instructions Manual

Panasonic AV-HS300 Operating Instructions Manual Manual pdf 55 page image

55Appendix (glossary)Defined below are the terms used in this manual.Word ExplanationAB BusAB Bus systemA bus control mode. By executing a transition, the A bus and B bus signals areoutput to the program images alternately.Ancillary Data The auxiliary data other than the video signals which is transmitted inside thedata stream of the video serial interface. The data superimposed on the verticalblanking 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[Auxiliary Bus]A spare bus which can be switched by signals other than the main line outputsignals.AVDL[Automatic Video Delayline]Automatic phase adjustmentA function to automatically adjust the input image signal phase to the horizontalsynchronization reference signal phase.BBBlack burstThe black burst signal. A full-screen black level composite signal which is usedas 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 borderis referred to as the soft effect.Clip The threshold level of the luminance when key signals are created from a keysource.Color Background The signals which are output from the internal color generator and used as thebackground image.Density A parameter which is used to adjust the density of the key signals.DVI [Digital Visual Interface] A digital video interface standard.DVI-I can handle both digital signals and analog signals.Ethernet A computer network standard; the 10BASE-T (10 Mbps), 100BASE-TX (100Mbps) or other such standard based on the transmission speed.Flip Flop system A bus control mode. The signals selected by the program bus are always outputas the program images. By executing a transition, the program bus and presetbus signals are switched over.Frame Memory A memory which can hold the video signals equivalent to one frame.Frame Synchronizer A function which enables the non-synchronized video signal input to beswitched.Freeze A function which continues the display of the same image, creating theimpression that the image has been “frozen”.Gain A parameter which adjusts the defocusing of the edges of the key signals.