Patent
Clock generation circuit
TLDR
In this paper, the authors proposed to minimize even the horizontal shift of the liquid crystal TV screen and thus to enhance the picture quality by producing the sampling clock signals from the horizontal synchronous signals and then securing the synchronization for the sampling timing in each horizontal scanning.Abstract:
PURPOSE: To minimize even the horizontal shift of the liquid crystal TV screen and thus to enhance the picture quality by producing the sampling clock signals from the horizontal synchronous signals and then securing the synchronization for the sampling timing in each horizontal scanning. CONSTITUTION: Both the frequency and phase control are given to oscillation circuit 34 with the output of phase comparator 31 plus the output of subsequent LPF32. At the same time, the output of circuit 34 or the signal obtained by multiplying and dividing the output of 34 is drawn out in the form of sampling clock 38 of the video signal and horizontal synchronous oscillation output 37. With use of these signals, the synchronization is secured for the video signal sampling timing on each horizontal line, and also the timing has assured synchronization to the same picture element with each frame. As a result, the contour blur is reduced on the TV screen, at the same time enhancing the resolution greatly. COPYRIGHT: (C)1980,JPO&Japioread more
Citations
More filters
Patent
Phase synchronizing circuit in video signal receiver and method of establishing phase synchronization
Hirao Yoshickika,Nobukazu Hosoya +1 more
TL;DR: In this article, a phase synchronizing circuit is proposed to detect synchronization/non-synchronization of an output of a frequency divider circuit with the horizontal synchronization signal separated/extracted in the synchronization separating circuit.
Patent
Pocketable television receiver
Takahiro Fuse,Yukinori Hirasawa,Shunji Kashiyama,Masao Kawamura,Saburo Kobayashi,Noboru Yabe +5 more
TL;DR: In this article, a display panel of double matrix constitution for the purpose of display in almost (scanning line number÷2÷4) -1 of duty is presented.
Patent
Running position display device of vehicle
TL;DR: In this article, the running position of an automobile was corrected to match a road by an operating part of a computer when the vehicle's position did not match the road on a map.
Patent
Digital oscilloscope using color plane display device and data display method therefore
TL;DR: In this article, a digital oscilloscope includes a memory for storing waveform data to be displayed; a display data output unit including sync signal generating unit for generating a sync signal and an output unit for reading the data from the memory in synchronism with the sync signal to output said read wave form data; an audio/visual color dot matrix plane display device including a display unit having dots arranged in a matrix form for color representation.
Patent
Index-forming tool
Suzuki Hideyuki,Tachibana Ryuto +1 more
TL;DR: An index-forming tool capable of registering and notching in a stable orientation is provided in this paper, where a cutting blade is incorporated in a base and a guide path along with a slit orthogonal to the guide path is provided.