Apparatus and method for interfacing analog video camcorder and personal computer with each other
AssigneeSamsung Electronics Co., Ltd.
InventorYoon-Seop Choi
Life of this patent
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Abstract
An apparatus for and a method of interfacing an analog video camcorder and a personal computer with each other. A horizontal synchronous signal used for the analog video camcorder is delayed for a desired time in order to prevent a phenomenon in which a picture is displayed on a monitor of the personal computer while having a black portion at the leading portion thereof and being clipped at the trailing portion thereof when using a personal computer interface unit for digital video camcorders. By virtue of the delayed horizontal synchronous signal, the personal computer can receive information from the analog video camcorder without any problem. The apparatus and method are appropriately applied to portable imaging devices.
Claims25
An apparatus for interfacing an analog video camcorder which outputs a video picture and a personal computer having a monitor with each other, comprising:
- a unit providing clock signals and control signals including a horizontal synchronous signal to be used for the analog video camcorder;
- a horizontal synchronous signal delay unit to delay the horizontal synchronous signal so that the video picture output from said analog video camcorder is to be displayed on the monitor of the personal computer while being included, as much as possible, in a screen region defined on the monitor;
- and
- an interface unit to interface the personal computer to the analog video camcorder, said interface unit to perform an interfacing operation for the video picture output from the analog video camcorder in response to the delayed horizontal signal and the remainder of the control signals, wherein the horizontal synchronous signal delay unit delays the horizontal synchronous signal by an average that the interface unit clips a leading portion and a trailing portion of the video picture.
An apparatus for interfacing an analog portable imaging device which outputs a video picture and a horizontal synchronous signal with a personal computer having a monitor, comprising:
- an interface unit to interface the analog portable imaging device with the personal computer, to perform an interfacing operation for the video picture output from the analog portable imaging device in response;
- and
- a delay unit to delay the video picture output from the analog portable imaging device to the personal computer, to improve centering of the video picture on the monitor, wherein the delay unit delays the horizontal synchronous signal by an average that the interface unit clips a leading portion and a trailing portion of the video picture.
An apparatus for interfacing an analog portable imaging device which samples a video picture with a first clock signal of a first frequency and a horizontal synchronous signal with a personal computer having a monitor, comprising:
- an interface unit designed to operate at a second clock signal of a second frequency different from the first frequency, to perform an interfacing operation for the video picture output from the analog portable imaging device in response;
- and
- a delay unit to delay the video picture output from the analog portable imaging device to pass from said interface unit to the personal computer, to improve centering of the video picture on the monitor, wherein the delay unit delays the horizontal synchronous signal by an average that the interface unit clips a leading portion and a trailing portion of the video picture.
A method of interfacing an analog video camcorder which outputs a video picture and a personal computer having a monitor with each other, comprising:
- providing clock signals and control signals including a horizontal synchronous signal to be used for the analog video camcorder;
- delaying the horizontal synchronous signal so that the video picture output from the analog video camcorder is to be displayed on the monitor of the personal computer while being included, as much as possible, in a screen region defined on the monitor;
- and
- performing an interfacing process for the video picture output from the analog video camcorder in response to the delayed horizontal signal and the remainder of the control signals, thereby outputting the video picture to the personal computer, wherein the horizontal synchronous signal is delayed by an average that the interface process clips a leading portion and a trailing portion of the video picture.
A method of interfacing an analog portable imaging device which outputs a video picture and a personal computer having a monitor with each other, comprising:
- providing a horizontal synchronous signal to be used for the analog portable imaging device;
- delaying the horizontal synchronous signal so that a center portion of the video picture output from said analog portable imaging device is displayed centered on the monitor of the personal computer;
- and
- performing an interfacing process for the video picture output from the analog portable imaging device in response to the delayed horizontal signal, thereby outputting the video picture to the personal computer, wherein the horizontal synchronous signal is delayed by an average that the interface process clips a leading portion and a trailing portion of the video picture.
Dependencies are inferred from the claim text.