公开(公告)号：JP2003047018A

公开(公告)日：2003-02-14

申请号：JP2001210775

申请日：2001-07-11

Applicant: Lg Electronics Inc ,  エルジー電子株式会社

Inventor： ISONO KATSUO ,  YOSHIZAWA KUNIHIRO

IPC: H04N9/31 ,  G09G1/00 ,  H04N17/04

Abstract: PROBLEM TO BE SOLVED: To eliminate the need for a conventional large photosensor unit and an A/D converter, and to detect a center position easily simply by moving the travel direction of an alignment pattern in horizontal and vertical directions.
SOLUTION: In the automatic convergence correction circuit, a plurality of photosensor units are arranged at a fixed interval along a periphery on the rear of a screen, and four small sensors are arranged in a measure shape on the same board in each photosensor unit. The detection output of the small sensors is inputted to an arithmetic unit for addition/subtraction operation of each detection output, and the position of the photosensor unit is detected for horizontal and vertical directions based on the arithmetic result. Convergence deviation distance to a position that is subjected to converse adjustment in advance and a detected photosensor unit position is obtained, and convergence correction is made based on the positional relationship.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：为了消除对常规大型光电传感器单元和A / D转换器的需要，并且通过在水平和垂直方向上移动对准图案的行进方向，可以容易地检测中心位置。 解决方案：在自动会聚校正电路中，多个光传感器单元沿着屏幕后部的周边以固定间隔布置，并且在每个光电传感器单元中的同一板上以四个小传感器布置为测量形状。 小传感器的检测输出被输入到用于每个检测输出的加法/减法运算的运算单元，并且基于运算结果检测光电传感器单元的水平和垂直方向的位置。 获得与预先进行相反调整的位置的接收偏差距离和检测到的光电传感器单元位置，并且基于位置关系进行收敛校正。

公开(公告)号：JP2000349667A

公开(公告)日：2000-12-15

申请号：JP14964499

申请日：1999-05-28

Applicant: LG ELECTRONICS INC

Inventor： YOSHIZAWA KUNIHIRO

IPC: H04B1/16

Abstract: PROBLEM TO BE SOLVED: To obtain a car radio receiver that can automatically tune specific information program that is intermittently and repetitively broadcast. SOLUTION: The on-vehicle audio broadcast receiver is provided with an antenna 1, a tuner circuit 2 that tunes a received radio wave, detects and demodulates the tuned radio wave, an audio output means, a changeover circuit 3 that is placed to a pre-stage of the audio output means and changes the tuner circuit 2 or an external audio source and connects the selected circuit or source to the audio output means, a digital audio recognition circuit 18 that monitors an output of the tuner circuit 2 and recognizes and stores a characteristic audio pattern including time information of a specific information program, a time counter and a time comparator circuit 9 that compares the stores time information with the output of the time counter. Then the time comparator circuit 9 as the on-vehicle audio broadcast receiver outputs a signal to allow the changeover circuit 3 to change the tuner circuit 2 when the time comparator circuit 9 detects coincidence of time.

公开(公告)号：JP2002369214A

公开(公告)日：2002-12-20

申请号：JP2001163258

申请日：2001-05-30

Applicant: Lg Electronics Inc ,  エルジー電子株式会社

Inventor： ISONO KATSUO ,  YOSHIZAWA KUNIHIRO

IPC: H04N9/31 ,  H04N5/74 ,  H04N9/28 ,  H04N17/04

CPC classification number: H04N9/28

Abstract: PROBLEM TO BE SOLVED: To easily detect the location of a sensor by merely moving an alignment pattern laterally or vertically, without using conventional large-size optical sensor units or A/D converters.
SOLUTION: An automatic convergence correction circuit is structured so that a plurality of optical sensor units are located at regular intervals along the periphery of the rear face of a screen, each optical sensor unit comprising two small sensors located diagonally on one and the same substrate, and the detection outputs of these small sensors are inputted into the positive side and the negative side of an operational amplifier and adding and subtracting operations are conducted for each detection output. Based on the operation results, the horizontal and vertical locations of the optical sensor units are detected, to find out the deviation of convergence at the detected locations of the optical sensor units from that at the convergence-adjusted locations. Based on the relation among thee locations, convergence correction is made.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：通过仅通过横向或垂直地移动对准图来容易地检测传感器的位置，而不使用传统的大尺寸光学传感器单元或A / D转换器。 解决方案：自动会聚校正电路被构造成使得多个光学传感器单元沿着屏幕的后表面的周边以规则的间隔设置，每个光学传感器单元包括两个位于同一基板上的对角的小型传感器， 并且这些小型传感器的检测输出被输入到运算放大器的正侧和负侧，并且对每个检测输出进行加法和减法运算。 基于操作结果，检测光学传感器单元的水平和垂直位置，以找出光学传感器单元的检测位置处的会聚偏差与会聚调整位置处的会聚偏差。 根据您的位置之间的关系，进行收敛校正。

公开(公告)号：JP2000324421A

公开(公告)日：2000-11-24

申请号：JP11592599

申请日：1999-04-23

Applicant: LG ELECTRONICS INC

Inventor： TOMII KAORU ,  YOSHIZAWA KUNIHIRO

IPC: H04N5/63 ,  H04N5/00 ,  H04N5/76

Abstract: PROBLEM TO BE SOLVED: To obtain a stand-by power source circuit of an electronic appliance minimized in stand-by power consumption. SOLUTION: This stand-by power source circuit of an electronic appliance is provided with a photodetective part 10 for photodetecting an optical signal from an external remote controller, a signal processing part 12 for processing and recognizing the signal photodetected by the part 10, a power source switching part on/off-controlled by the output of the part 12 and a photoelectric transducer 14 for supplying power to the part 10, the part 12 and the power source switching part. The power source switching part is connected between the main power source circuit of the electronic appliance and the external power source.

公开(公告)号：JP2003047017A

公开(公告)日：2003-02-14

申请号：JP2001209760

申请日：2001-07-10

Applicant: Lg Electronics Inc ,  エルジー電子株式会社

Inventor： ISONO KATSUO ,  YOSHIZAWA KUNIHIRO

IPC: H04N9/31 ,  H04N17/04

Abstract: PROBLEM TO BE SOLVED: To perform accurate convergence correction by directly detecting position information in a screen by an integrated sensor/screen structure to prevent a projected screen from being disturbed.
SOLUTION: In the automatic convergence correction circuit, a photosensor unit is arranged at the center of the front of a screen, the photosensor unit is divided into four portions, the detection output of each small sensor is inputted to an arithmetic unit for adding and subtracting each detection output, the position of the photosensor unit is detected regarding horizontal and vertical directions based on the arithmetic result, the distance in convergence deviation to a position that is subjected to convergence adjustment in advance and to a detected photosensor unit position is obtained, and convergence correction is made based on the positional relationship.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：通过通过集成传感器/屏幕结构直接检测屏幕中的位置信息来执行准确的会聚校正，以防止投影屏幕受到干扰。 解决方案：在自动会聚校正电路中，将光电传感器单元布置在屏幕前部的中央，将光电传感器单元分成四部分，每个小传感器的检测输出被输入到运算单元中， 根据运算结果，获得光检测单元的位置与水平方向和垂直方向的关系，获得预先进行会聚调整的位置的收敛偏离距离和检测到的光电传感器单元位置 基于位置关系进行收敛校正。

公开(公告)号：JPH1125486A

公开(公告)日：1999-01-29

申请号：JP17680597

申请日：1997-07-02

Applicant: LG ELECTRONICS INC

Inventor： YOSHIZAWA KUNIHIRO

IPC: G11B21/10 ,  G11B7/09 ,  G11B7/095 ,  G11B19/247 ,  G11B19/28

Abstract: PROBLEM TO BE SOLVED: To simplify a design and to unnecessitate a microcomputer for storing coeffts. so as to reduce the scale of hardware and the cost by changing a clock signal frequency to be supplied to digital filters in response to a linear velocity in an optical disk reading-out position. SOLUTION: The digital filters are connected in three-stage series, and a frequency-divided clock signal CL is supplied to individual delay circuits Z . The coeffts. KA-KF are set to be optimum coeffts at the linear velocity V as an arbitrary velocity from a min. to a max., and these coeffts are always constant even at the time of changing the linear velocity V. On the contrary, the clock signal frequency is changed in response to the linear velocity V in the optical disk reading-out position. Provided the clock signal frequency at the time of the max. linear velocity V is a max. frequency in its processible range, whenever the linear velocity V becomes half, the clock signal frequency is also halved. Thus, an effect equivalent to the coeffts. KA-KF changed substantially in response to the linear velocity V is obtained.

公开(公告)号：GB2393626A

公开(公告)日：2004-03-31

申请号：GB0329885

申请日：2002-05-29

Applicant: LG ELECTRONICS INC

Inventor： ISONO KATSUO ,  YOSHIZAWA KUNIHIRO

IPC: H04N5/74 ,  H04N9/28 ,  H04N17/04 ,  H04N9/31

Abstract: A method and an apparatus of re-adjusting convergence of a projection TV are disclosed. The apparatus includes a display device on which an image is projected and at least one light-sensing element (101) being provided around the display device. The light-sensing element (101) is composed of first and second sub-sensors (101a, 101b) that generate separate output signals as a projected alignment pattern moves over the sub-sensors (101a, 101b). The apparatus further includes a microprocessor calculating a convergence re-adjustment vector by obtaining a location of the light-sensing element (101), from which a previous convergence correction was made. The location of the light-sensing element (101) is obtained by analyzing the output signals. By using the apparatus and method of present invention, the misconvergence of the projection TV can be corrected very quickly and precisely.

公开(公告)号：AU2002303010B2

公开(公告)日：2008-08-07

申请号：AU2002303010

申请日：2002-05-29

Applicant: LG ELECTRONICS INC

Inventor： ISONO KATSUO ,  YOSHIZAWA KUNIHIRO

IPC: H04N9/31 ,  H04N5/74 ,  H04N9/28 ,  H04N17/04

Abstract: A method and an apparatus of re-adjusting convergence of a projection TV are disclosed. The apparatus includes a display device on which an image is projected and at least one light-sensing element ( 101 ) being provided around the display device. The light-sensing element ( 101 ) is composed of first and second sub-sensors ( 101 a, 101 b) that generate separate output signal projected alignment pattern moves over the sub-sensors ( 101 a , 101 b). The apparatus further includes a microprocessor calculating a convergence re-adjustment vector by obtaining a location of the light-sensing element ( 101 ), from which a previous convergence correction was made. The location of the light-sensing element ( 101 ) is obtained by analyzing the output signals. By using the apparatus and method of present invention, the misconvergence of the projection TV can be corrected very quickly and precisely.

公开(公告)号：DE10297110T5

公开(公告)日：2005-02-17

申请号：DE10297110

申请日：2002-05-29

Applicant: LG ELECTRONICS INC

Inventor： ISONO KATSUO ,  YOSHIZAWA KUNIHIRO

IPC: H04N9/31 ,  H04N5/74 ,  H04N9/28 ,  H04N17/04

Abstract: A method and an apparatus of re-adjusting convergence of a projection TV are disclosed. The apparatus includes a display device on which an image is projected and at least one light-sensing element ( 101 ) being provided around the display device. The light-sensing element ( 101 ) is composed of first and second sub-sensors ( 101 a, 101 b) that generate separate output signal projected alignment pattern moves over the sub-sensors ( 101 a , 101 b). The apparatus further includes a microprocessor calculating a convergence re-adjustment vector by obtaining a location of the light-sensing element ( 101 ), from which a previous convergence correction was made. The location of the light-sensing element ( 101 ) is obtained by analyzing the output signals. By using the apparatus and method of present invention, the misconvergence of the projection TV can be corrected very quickly and precisely.

公开(公告)号：GB2393626B

公开(公告)日：2004-12-01

申请号：GB0329885

申请日：2002-05-29

Applicant: LG ELECTRONICS INC

Inventor： ISONO KATSUO ,  YOSHIZAWA KUNIHIRO

IPC: H04N5/74 ,  H04N9/28 ,  H04N17/04 ,  H04N9/31

Abstract: A method and an apparatus of re-adjusting convergence of a projection TV are disclosed. The apparatus includes a display device on which an image is projected and at least one light-sensing element ( 101 ) being provided around the display device. The light-sensing element ( 101 ) is composed of first and second sub-sensors ( 101 a, 101 b) that generate separate output signal projected alignment pattern moves over the sub-sensors ( 101 a , 101 b). The apparatus further includes a microprocessor calculating a convergence re-adjustment vector by obtaining a location of the light-sensing element ( 101 ), from which a previous convergence correction was made. The location of the light-sensing element ( 101 ) is obtained by analyzing the output signals. By using the apparatus and method of present invention, the misconvergence of the projection TV can be corrected very quickly and precisely.