公开(公告)号：US20060171432A1

公开(公告)日：2006-08-03

申请号：US11320722

申请日：2005-12-30

申请人： Toru Nagara

发明人： Toru Nagara

IPC分类号： H01S3/00

CPC分类号： G11B7/1263

摘要： The present invention enables to stably output an optical beam. The present invention provides an upper limit value comparator for comparing a low bandwidth signal according to an output intensity of an optical beam emitted to an optical disk in the case of reproducing data from the optical disk with an upper limit value, a lower limit value comparator for comparing the low bandwidth signal with the lower limit value smaller than the upper limit value, and an up-down counter for decreasing the counter value from the counter value immediately before when the low bandwidth signal is larger than the upper limit value, increasing the counter value from the counter value immediately before when the low bandwidth signal is smaller than the lower limit value and holding the counter value at the counter value immediately before when the low bandwidth signal is smaller than the upper limit value and larger than the lower limit value.

摘要翻译： 本发明能够稳定地输出光束。 本发明提供一种上限值比较器，用于在从具有上限值的光盘再现数据的情况下，根据发射到光盘的光束的输出强度来比较低带宽信号，下限值比较器 用于将低带宽信号与小于上限值的下限值进行比较，以及用于当低带宽信号大于上限值时从紧接着的计数器值减小计数器值的上下计数器，增加 当低带宽信号小于下限值时，紧接在之前的计数器值计数值，并且当低带宽信号小于上限值并且大于下限值时，将计数器值保持在紧接在之前的计数器值 。

公开(公告)号：US07035195B2

公开(公告)日：2006-04-25

申请号：US10784745

申请日：2004-02-24

申请人： Toru Nagara

发明人： Toru Nagara

IPC分类号： G11B7/00

CPC分类号： G11B7/1263 ,  G11B7/1275 ,  G11B2007/0006 ,  H01S5/042 ,  H01S5/0683 ,  H01S5/40 ,  H01S5/4087

摘要： A laser diode drive circuit for an optical disc recording and/or reproducing apparatus includes a plurality of laser diodes to output laser beams having different wavelengths, a switch circuit for selectively connecting a required laser diode from a plurality of laser diodes, a laser diode drive power supply circuit for driving the laser diode selectively connected by the switch circuit, a photodiode for detecting at least part of laser beams emitted from the laser diode to convert a detected part of laser beams into an electrical signal, a plurality of current-to-voltage conversion amplifiers connected to an output of the photodiode and whose conversion resistance values can be adjusted and having differently designed center conversion resistance values and an automatic power control circuit connected to outputs of the current-to-voltage conversion amplifiers to output a feedback signal to the laser diode drive power supply circuit. An amplifying circuit for such a laser diode drive power supply circuit, an optical disc recording and/or reproducing apparatus including such a laser diode drive circuit and a laser diode drive method for an optical disc recording and/or reproducing apparatus are also provided.

公开(公告)号：US20050265200A1

公开(公告)日：2005-12-01

申请号：US11108534

申请日：2005-04-18

申请人： Yoshio Fukutomi ,  Toru Nagara

发明人： Yoshio Fukutomi ,  Toru Nagara

IPC分类号： G11B7/005 ,  G11B7/125 ,  G11B7/13 ,  G11B11/105 ,  G11B20/10 ,  G11B20/24 ,  G11B7/00

CPC分类号： G11B20/24 ,  G11B7/005 ,  G11B7/126

摘要： Disclosed herein is a laser noise cancel circuit for reducing laser noises in a reproduction system for an optical disk device including, a gain-variable amplifying noise cancel circuit for amplifying a monitor output signal for laser light, a first low-pass filter for extracting low frequency signal components of a monitor output signal for noise canceling, a second low-pass filter for extracting low frequency signal components, a negative return loop circuit for controlling a gain in the amplifying noise cancel circuit based on the low frequency signal components of the monitor output signal for noise canceling extracted as well as on the low frequency signal components of the reproduced high frequency signal extracted, to determine the low frequency signal component rate of the monitor output signal for noise canceling as identical to the low frequency signal component rate of the reproduced high frequency signal, and an arithmetic circuit for generating the reproduced high frequency signal with the laser noise components cancelled by canceling the laser noise components extracted from the monitor output signal for noise canceling with a low frequency signal component rate determined as identical to the low frequency signal component rate of the reproduced high frequency signal with the laser noise components of the reproduced high frequency signal.

摘要翻译： 这里公开了一种用于减少用于光盘装置的再现系统中的激光噪声的激光噪声消除电路，包括用于放大用于激光的监视器输出信号的增益可变放大噪声消除电路，用于提取低电平的第一低通滤波器 用于噪声消除的监视器输出信号的频率信号分量，用于提取低频信号分量的第二低通滤波器，用于基于监视器的低频信号分量来控制放大噪声消除电路中的增益的负返回环路 提取的噪声消除输出信号以及所提取的再现的高频信号的低频信号分量，以确定用于噪声消除的监视器输出信号的低频信号分量率与低频信号分量速率相同 再现的高频信号，以及用于产生再现的高频信号的运算电路 y信号，其中激光噪声分量通过消除从监视器输出信号提取的用于噪声消除的激光噪声分量被消除，其中低频信号分量速率被确定为与具有激光噪声的再现的高频信号的低频信号分量率相同 再生高频信号的分量。

公开(公告)号：US20050135222A1

公开(公告)日：2005-06-23

申请号：US11005041

申请日：2004-12-07

申请人： Yoshio Fukutomi ,  Toru Nagara

发明人： Yoshio Fukutomi ,  Toru Nagara

IPC分类号： G11B7/005 ,  G11B7/00 ,  G11B7/125 ,  G11B7/135 ,  G11B20/02

CPC分类号： G11B7/1263

摘要： A laser noise elimination circuit raises the gain of a first TIA and at the same time reflected light from an optical disc of a laser beam is subjected to photoelectric conversion by means of a photo detector and a second TIA to obtain an RF signal. Then, the direct current component of the FPD signal obtained by photoelectric conversion of part of the laser beam by means of another photo detector and the first TIA is cut out by a high pass filter and then subtracted by a subtracter. The gain of the first TIA is raised in a read mode of operation for reading data from the optical disc and lowered in a write mode of operation for writing data onto the optical disc so as to always effectively eliminate only the laser noise from the RF signal and prevent the circuit from being saturated in a write mode.

摘要翻译： 激光噪声消除电路提高第一TIA的增益，并且同时来自激光束的光盘的反射光通过光电检测器和第二TIA进行光电转换以获得RF信号。 然后，通过另一光电检测器和第一TIA光电转换激光束获得的FPD信号的直流分量由高通滤波器切出，然后用减法器减去。 第一TIA的增益在用于从光盘读取数据的读取操作模式下升高，并且以写入数据到光盘的写入操作模式降低，以便始终有效地消除来自RF信号的激光噪声 并防止电路在写入模式下饱和。

公开(公告)号：US09094664B2

公开(公告)日：2015-07-28

申请号：US13345010

申请日：2012-01-06

申请人： Toru Nagara ,  Tomoya Yamaura

发明人： Toru Nagara ,  Tomoya Yamaura

IPC分类号： H04N13/00 ,  H04N19/597

CPC分类号： H04N13/161 ,  H04N13/172 ,  H04N13/194 ,  H04N19/597

摘要： Provided is an image processing device including a frame image generation unit for generating a frame image in which a first image and a second image are arranged next to each other, and a compression processing unit for compressing the frame image in units of macroblocks. The frame image generation unit arranges the first image and the second image such that a boundary between the first image and the second image coincides with boundaries of the macroblocks.

摘要翻译： 提供了一种图像处理装置，包括：帧图像生成单元，用于生成其中第一图像和第二图像彼此相邻布置的帧图像;以及压缩处理单元，用于以宏块为单位压缩帧图像。 帧图像生成单元布置第一图像和第二图像，使得第一图像和第二图像之间的边界与宏块的边界重合。

公开(公告)号：US08755817B2

公开(公告)日：2014-06-17

申请号：US13116220

申请日：2011-05-26

申请人： Toru Nagara ,  Tomoya Yamaura

发明人： Toru Nagara ,  Tomoya Yamaura

IPC分类号： H04W64/00 ,  H04W4/02

CPC分类号： H04W64/00 ,  H04W4/02 ,  H04W48/16 ,  H04W88/02

摘要： There is provided a wireless communication device including a determination unit that determines a location region of the wireless communication device, a communication unit that wirelessly communicates with another wireless communication device, and a setting unit that sets a frequency in accordance with the location region of the wireless communication device determined by the determination unit to the communication unit. The determination unit determines a location region of the wireless communication device based on a plurality of pieces of location region information of the wireless communication device acquired by a plurality of different methods.

摘要翻译： 提供了一种无线通信装置，其包括确定无线通信装置的位置区域的确定单元，与另一无线通信装置无线通信的通信单元，以及根据所述无线通信装置的位置区域设定频率的设定单元 由确定单元确定的通信单元的无线通信设备。 确定单元基于通过多种不同方法获取的无线通信设备的多个位置区域信息来确定无线通信设备的位置区域。

公开(公告)号：US20120051244A1

公开(公告)日：2012-03-01

申请号：US13211489

申请日：2011-08-17

申请人： Toru Nagara

发明人： Toru Nagara

IPC分类号： H04W24/10

CPC分类号： H04W8/005 ,  H04W24/10 ,  H04W76/00

摘要： A wireless communication apparatus includes a receiving unit configured to receive a response request signal, a transmitting unit configured to transmit a response signal in response to the response request signal, a measuring unit configured to continuously measure received power of the response request signal received by the receiving unit, and a communication control unit configured to cause the transmitting unit to transmit the response signal to a wireless communication apparatus that has transmitted the response request signal if the received power of the response request signal is higher than a threshold value.

摘要翻译： 一种无线通信装置，包括：接收单元，被配置为接收响应请求信号;发送单元，被配置为响应于所述响应请求信号发送响应信号;测量单元，被配置为连续测量由所述响应请求信号接收到的响应请求信号的接收功率; 接收单元，以及通信控制单元，被配置为如果所述响应请求信号的接收功率高于阈值，则使所述发送单元向所述发送了所述响应请求信号的无线通信装置发送所述响应信号。

公开(公告)号：US20110299461A1

公开(公告)日：2011-12-08

申请号：US13116220

申请日：2011-05-26

申请人： Toru Nagara ,  Tomoya Yamaura

发明人： Toru Nagara ,  Tomoya Yamaura

IPC分类号： H04W4/02

CPC分类号： H04W64/00 ,  H04W4/02 ,  H04W48/16 ,  H04W88/02

摘要： There is provided a wireless communication device including a determination unit that determines a location region of the wireless communication device, a communication unit that wirelessly communicates with another wireless communication device, and a setting unit that sets a frequency in accordance with the location region of the wireless communication device determined by the determination unit to the communication unit. The determination unit determines a location region of the wireless communication device based on a plurality of pieces of location region information of the wireless communication device acquired by a plurality of different methods.

摘要翻译： 提供了一种无线通信装置，其包括确定无线通信装置的位置区域的确定单元，与另一无线通信装置无线通信的通信单元，以及根据所述无线通信装置的位置区域设定频率的设定单元 由确定单元确定的通信单元的无线通信设备。 确定单元基于通过多种不同方法获取的无线通信设备的多个位置区域信息来确定无线通信设备的位置区域。

公开(公告)号：US08054725B2

公开(公告)日：2011-11-08

申请号：US10964625

申请日：2004-10-15

申请人： Toru Nagara ,  Yoshio Fukutomi

发明人： Toru Nagara ,  Yoshio Fukutomi

IPC分类号： G11B7/00

CPC分类号： G11B7/00456 ,  G11B7/123 ,  G11B7/1263 ,  G11B7/13

摘要： An optical disk apparatus for writing signals on a recording medium by irradiating the recording medium with a laser beam modulated based on the signals includes a first converting unit for converting a first reflected laser beam component from the recording medium into electrical signals; a second converting unit for converting a second reflected laser beam component into electrical signals; a first sample-and-hold unit for sampling and holding the electrical signals from the first converting unit; a second sample-and-hold unit for sampling and holding the electrical signals from the second converting unit; and transmitting devices for transmitting the held signals from the first and the second sample-and-hold units. The sampled signals are averaged, and the averaged signal is held in each of the first and the second sample-and-hold units during signal writing.

摘要翻译： 一种用于通过用基于信号调制的激光束照射记录介质来在记录介质上写入信号的光盘装置包括用于将来自记录介质的第一反射激光束分量转换为电信号的第一转换单元; 第二转换单元，用于将第二反射激光束分量转换成电信号; 第一采样保持单元，用于对来自第一转换单元的电信号进行采样和保持; 第二采样保持单元，用于对来自第二转换单元的电信号进行采样和保持; 以及用于发送来自第一和第二采样保持单元的保持信号的发送设备。 对采样信号进行平均，并且在信号写入期间将平均信号保持在第一和第二采样保持单元中的每一个中。

公开(公告)号：US20100146134A1

公开(公告)日：2010-06-10

申请号：US12590797

申请日：2009-11-13

申请人： Yoshihiro Kobayashi ,  Toru Nagara

发明人： Yoshihiro Kobayashi ,  Toru Nagara

IPC分类号： G06F15/16

CPC分类号： G06F21/606 ,  G06F21/10 ,  H04N21/43615 ,  H04N21/43622 ,  H04N21/4367 ,  H04N21/4405

摘要： There is provided a communication device, comprising, a communication unit which mediates a communication connection with another communication device, a memory unit which stores connection history information which indicates history of a connection party connected via the communication unit and connection restriction information to limit the number of connection party changes, and a determination unit which determines connection acceptability with a new connection party based on the connection history information and the connection restriction information stored in the memory unit.

摘要翻译： 提供了一种通信设备，包括：通信单元，其介导与另一通信设备的通信连接;存储单元，其存储指示经由通信单元连接的连接方的历史的连接历史信息和连接限制信息，以限制数量 以及确定单元，其基于连接历史信息和存储在存储单元中的连接限制信息来确定与新的连接方的连接可接受性。