公开(公告)号：JP2003203348A

公开(公告)日：2003-07-18

申请号：JP2002122706

申请日：2002-04-24

Applicant: YAMAHA CORP

Inventor： MORISHIMA MORIHITO ,  USUI AKIRA ,  SHIOZAKI YOSHIHIKO

IPC: G11B7/0037 ,  G11B7/0045 ,  G11B7/007 ,  G11B7/125 ,  G11B23/30 ,  G11B23/40

Abstract: PROBLEM TO BE SOLVED: To record visible information on a thermosensitive face of an optical disk while recording information on a recording face without respectively preparing a new apparatus or the like. SOLUTION: When recording data is supplied from a host PC 110, the recording data is supplied to a laser driver 19 through a buffer memory 36, an encoder 17, and a strategy circuit 18, and an optical disk D is irradiated with laser light in accordance with the recording data to record information. When image data is supplied from the host PC 110, the image data is supplied to the laser driver 19 through the buffer memory 36, a control part 16, a FIFO memory 34, and a driving pulse generation part 35, and laser light is radiated in accordance with the image data to form a visible image on the thermosensitive face of the optical disk D. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2001094543A

公开(公告)日：2001-04-06

申请号：JP26478199

申请日：1999-09-20

Applicant: YAMAHA CORP

Inventor： USUI AKIRA

IPC: H04N5/91 ,  G11B20/10 ,  G11B20/18 ,  H03M13/15 ,  H04L9/08 ,  H04L9/36

Abstract: PROBLEM TO BE SOLVED: To transmit or record key information together with data without making the location of the key information clear lowering the data quality. SOLUTION: An ECC addition part 13 of an encoding device 1 generates and adds an error correction code (residue) for correcting an error of data to the data. A key information addition part 14 adds pieces K1 and K2 of key information as restorable errors to the data and transmits them through media 3 or records them to the media 3. The transmitted or recorded key information is separated into the pieces K1 and K2 of key information after error correction of data based upon the added residue and they are outputted.

公开(公告)号：JPH05313785A

公开(公告)日：1993-11-26

申请号：JP14489892

申请日：1992-05-11

Applicant: YAMAHA CORP

Inventor： USUI AKIRA

IPC: G06F1/08 ,  G06F1/10 ,  G06F1/12 ,  H01L27/02 ,  H03L7/06 ,  H03L7/099 ,  H03L7/183

Abstract: PURPOSE:To provide the integrated circuit device having an internal clock generation means useful for the system requiring the high-speed internal processing. CONSTITUTION:An LSI chip 1 is constituted of an input interface 2, a FIFO buffer 3, a signal processing logic circuit 4, a FIFO buffer 5, an output interface 6, and a PLL circuit 7 generating internal clocks. The input/output interfaces 2, 6 are synchronized with the external synchronizing signals to transmit data to and receive data from outside. The PLL circuit 7 is synchronized with the external synchronizing signal to generate the high-speed internal clocks from the external clock. By the obtained internal clocks, the signal processing logic circuit 4 executes a high-speed signal processing.

公开(公告)号：JPH05189989A

公开(公告)日：1993-07-30

申请号：JP29343391

申请日：1991-11-08

Applicant: YAMAHA CORP

Inventor： KONAGAI YUSUKE ,  USUI AKIRA

IPC: G06F1/32 ,  G06F1/04 ,  G06F1/06 ,  G11C11/401 ,  G11C19/00 ,  G11C19/28 ,  H01L21/822 ,  H01L21/8238 ,  H01L27/04 ,  H01L27/092

Abstract: PURPOSE:To reduce power consumption when a power source is applied by supplying, generating a false clock to a CMOSLSI provided with a dynamic storage cell instead of a clock to be supplied originally for a prescribed period after the power source is applied. CONSTITUTION:This current consumption suppression circuit 100 is inserted into the input side of a clock generation circuit 1 which generates a two-phase clock in the CMOSLSI provided with the dynamic storage cell. In the circuit 100, the voltage Rst on the connection point of a resistor 124 with a capacitor 125 rises being delayed than the rise of the voltage Vdd of a power source terminal, which power-on resets a two-bit counter 121. As a result, the output signal Stp of an AND gate 122 goes to zero, and a false clock generation circuit 110 oscillates, and the false clock XCK is outputted to the circuit 1 via a selector 130. Thereby, it is possible to suppress the current consumption in a period until an original clock is supplied after the power source is applied, and to reduce the power consumption.

公开(公告)号：JPH0449892B2

公开(公告)日：1992-08-12

申请号：JP28364485

申请日：1985-12-17

Applicant: YAMAHA CORP

Inventor： IIJIMA KENZABURO ,  HAYASHI YOSHINORI ,  NONAKA TERUMOTO ,  USUI AKIRA

IPC: G01B7/00 ,  G01D5/243 ,  G01D5/244 ,  G01D5/245

公开(公告)号：JPH02141117A

公开(公告)日：1990-05-30

申请号：JP29536288

申请日：1988-11-22

Applicant: YAMAHA CORP

Inventor： TORII JUNJI ,  USUI AKIRA ,  TAKEUCHI RENICHI ,  YAMAMURA MASAMITSU ,  YAMAMOTO YUSUKE

IPC: H03M1/66 ,  H03H17/00 ,  H03H17/02

Abstract: PURPOSE:To make the title circuit adaptive to various input timing specifications while employing a fixed system clock by detecting a sampling period of an input digital data so as to generate a start signal having a frequency being N times of the sampling frequency and controlling the output timing of the digital data and a synchronizing signal based on a bit input speed. CONSTITUTION:A bit clock BIC whose period is FB is inputted, a word clock SDSY and 16-bit serial data SBI for L and R channels are inputted to an S/P conversion section 11 for each sampling period FW(=1/fs). Thus, a synchronizing signal generating section 20 detects the leading of the word clock SDSY and detects the bit number of the bit clock BIC inputted by one sampling period FW. Then an output word clock WCO having a frequency 8 times the input sampling frequency fs is generated based on the result. The processing by an arithmetic control section 18 and an arithmetic section 12 is synchronized with an internal clock phiM and executed for each trailing of the word clock WCO and 8 sets each of digital data for L and R channels are obtained in one sampling period FW.

公开(公告)号：JPH01236431A

公开(公告)日：1989-09-21

申请号：JP6409788

申请日：1988-03-17

Applicant: YAMAHA CORP

Inventor： HIRAI MIKIO ,  USUI AKIRA ,  SUZUKI YOSHIAKI

IPC: G11B7/00 ,  G11B7/0045

Abstract: PURPOSE:To improve the S/N and to decrease errors by controlling the radiating state of the laser light in accordance with the immediately preceding blank length for reduction of the error of the pit length or the blank length due to the value of the immediately preceding blank length and for reduction of jitters of the reproduced signals. CONSTITUTION:An optical head 2 radiates the recording or reproducing laser light emitted from a laser light generating circuit 3 onto the surface of a disk 1 revolving at a fixed linear speed for recording or reproducing jobs. This recording data is supplied to a data production means 4 for production of the pit length data and the immediately proceeding blank length data corresponding to these lengths respectively. Based on these produced data, a laser light control means 5 controls the time of irradiation and the irradiation start timing of the laser light. As a result, the normal pit length is obtained at an approximately normal position and therefore the error due to pit length or the blank length due to the value of said immediately preceding blank length is reduced together with reduction of the jitters of the reproduced signals. Thus it is possible to improve the S/N and to decrease errors.

公开(公告)号：JP2008136196A

公开(公告)日：2008-06-12

申请号：JP2007280786

申请日：2007-10-29

Applicant: Yamaha Corp ,  ヤマハ株式会社

Inventor： USUI AKIRA

IPC: H04M1/00 ,  H04B7/26 ,  H04M1/21 ,  H04M11/00

CPC classification number: Y02D70/00 ,  Y02D70/449

Abstract: PROBLEM TO BE SOLVED: To provide a radio terminal device for a mobile phone for allowing a user to operate the mobile from a remote place without directly touching it. SOLUTION: A control unit 101 receives a ringtone stop from the user through an input keyboard unit 105 and transmits a signal requesting the stop of a ringtone to an external mobile phone through a radio unit 102 and an antenna 103. The control unit 101 receives "stop OK" from the mobile hone through the radio unit 102 and antenna 103, requesting the mobile phone to transmit termination information through the radio unit 102 and antenna 103 to receive the information, and outputs the termination information to a display unit 104 to display the information. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于移动电话的无线电终端设备，用于允许用户从远程位置操作移动设备而不直接接触移动电话。

解决方案：控制单元101通过输入键盘单元105从用户接收铃声停止，并通过无线电单元102和天线103将请求停止铃声的信号发送到外部移动电话。控制单元 101通过无线电单元102和天线103从移动蜂窝接收“停止OK”，请求移动电话通过无线电单元102和天线103发送终止信息以接收信息，并将终止信息输出到显示单元104 显示信息。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2004363695A

公开(公告)日：2004-12-24

申请号：JP2003156766

申请日：2003-06-02

Applicant: Yamaha Corp ,  ヤマハ株式会社

Inventor： USUI AKIRA

IPC: H04R1/40 ,  H04R3/12 ,  H04S3/00 ,  H04S5/02

CPC classification number: H04S3/008 ,  H04R1/403 ,  H04R3/12 ,  H04R2205/022 ,  H04R2430/20 ,  H04R2499/15 ,  H04S3/00

Abstract: PROBLEM TO BE SOLVED: To provide an array loudspeaker system for suitably reproducing a multichannel. SOLUTION: The array loudspeakers 1, 2 each comprising loudspeaker units arranged in m-rows and n-columns are provided in the left and right of a display apparatus 3. Each loudspeaker unit of the array loudspeakers 1, 2 emits a center channel, each loudspeaker unit of the array loudspeaker 1 emits a main L channel, and each loudspeaker unit of the array loudspeaker 2 emits a main R channel so as to have spherical radiation characteristics subjected to weighting on the basis of a Bessel function, respectively. The signal of a surround L channel is emitted as a beam reflected in wall faces and a ceiling from the array loudspeaker 1 and arrives in a listener, and the signal of a surround R channel is emitted as a beam reflected in wall faces and a ceiling from the array loudspeaker 2 and arrives in the listener. Sounds of all the channels may be outputted from a single array loudspeaker. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种用于适当地再现多通道的阵列扬声器系统。 解决方案：阵列扬声器1,2的每个扬声器单元在显示装置3的左侧和右侧均设置有排列成m行和n列的扬声器单元的阵列扬声器1,2。 阵列扬声器1的每个扬声器单元发射主L声道，并且阵列扬声器2的每个扬声器单元分别发射主R声道，以便具有基于贝塞尔函数进行加权的球面辐射特性。 环绕L通道的信号作为从阵列扬声器1反射在壁面和天花板上的光束发射并到达听众，并且环绕R声道的信号作为反射在壁面和天花板中的光束发射 从阵列扬声器2到达听众。 所有通道的声音可以从单个阵列扬声器输出。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004079142A

公开(公告)日：2004-03-11

申请号：JP2002241967

申请日：2002-08-22

Applicant: Yamaha Corp ,  ヤマハ株式会社

Inventor： USUI AKIRA

IPC: G11B23/40 ,  G11B7/0037 ,  G11B7/0045 ,  G11B7/24

Abstract: PROBLEM TO BE SOLVED: To provide a disk structure whereby an information recording optical disk being an optical disk such as a card type optical disk atypical of a disk type optical disk and formed with a visible image at areas at the outside of data recording areas can simply be produced, and to provide the optical disk produced by the structure, an optical disk recording method to form the visible image on the areas of the optical disk, and an optical disk recording apparatus. SOLUTION: Employing the disk type optical disk having one perforated line or more to obtain an optical disk atypical of the disk type optical disk by cutting off a slice at the perforated line forms a visible image at the outside of an inscribed circle with a part of the optical disk atypical of the disk type optical disk. A user cuts off the slice at the perforated line of the disk type optical disk to obtain the atypical optical disk on data recording disabled areas of which on a recording face the visible image is formed. COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供一种盘结构，其中信息记录光盘是诸如盘式光盘不典型的卡型光盘的光盘，并且在数据外部的区域形成可见图像 可以简单地制造记录区域，并且提供由该结构产生的光盘，在光盘的区域上形成可视图像的光盘记录方法和光盘记录装置。 解决方案：通过切割多孔线上的切片，采用具有一条或多条穿孔线的盘式光盘，通过切割多孔线上的切片获得非典型的光盘，在内接圆的外侧形成可见图像， 光盘类型光盘的一部分不典型。 用户在盘型光盘的穿孔线处切断切片，以在记录面上形成可视图像的数据记录禁用区域上获得非典型光盘。 版权所有（C）2004，JPO