公开(公告)号：US5109244A

公开(公告)日：1992-04-28

申请号：US618537

申请日：1990-11-27

申请人： Tadashi Otani ,  Toru Kosaka ,  Hiroshi Meguro

发明人： Tadashi Otani ,  Toru Kosaka ,  Hiroshi Meguro

IPC分类号： G03B15/05

CPC分类号： G03B15/05 ,  G03B2215/05

摘要： In a camera system including an electronic flash apparatus, a main capacitor of the flash apparatus is charged for a predetermined time interval, in response to a preparatory operation such as a first stroke of a release button. During this time interval, operation of an automatic distance measuring device, an automatic exposure controlling device and an object luminance discriminating circuit is prevented. A warning device warns a photographer that the main capacitor is insufficiently charged. Several voltage detectors detect different voltage levels of the main capacitor and produce detection signals for inhibiting the operation of the warning device and/or preventing further charging of the main capacitor.

公开(公告)号：US09250590B2

公开(公告)日：2016-02-02

申请号：US13526664

申请日：2012-06-19

申请人： Toru Kosaka

发明人： Toru Kosaka

IPC分类号： G03G15/00

CPC分类号： G03G15/5004

摘要： A power supply device includes a voltage output unit configured to output a DC voltage corresponding to a control signal from a first controller and an output evaluator configured to perform a judgment process of judging whether or not the DC voltage is a voltage corresponding to a set value received from the fist controller, and to output a result of the judgment to the first controller. The output evaluator includes a storage for storing correspondence information which shows a correspondence relationship between the set value and a voltage value of the DC voltage outputted from the voltage output unit. The output evaluator performs the judgment process by outputting the correspondence information to the first controller, and receiving a set value determined on the basis of the correspondence information from the first controller.

摘要翻译： 电源装置包括：电压输出单元，被配置为输出与来自第一控制器的控制信号相对应的DC电压;以及输出评估器，被配置为执行判断过程，判断过程是否直流电压是对应于设定值的电压 从第一控制器接收，并将判断结果输出到第一控制器。 输出评估器包括用于存储对应信息的存储器，其显示设定值与从电压输出单元输出的直流电压的电压值之间的对应关系。 输出评估器通过将对应信息输出到第一控制器来执行判断处理，并且接收基于来自第一控制器的对应信息确定的设定值。

公开(公告)号：US09007785B2

公开(公告)日：2015-04-14

申请号：US13527019

申请日：2012-06-19

申请人： Toru Kosaka

发明人： Toru Kosaka

IPC分类号： H02M3/335 ,  G03G15/00

CPC分类号： G03G15/80

摘要： A power supply with a digital control circuit generates an output voltage by driving a piezoelectric transducer with an alternating current voltage at a digitally controlled driving frequency. To skip over a spurious frequency, the driving frequency is switched between a first range above the spurious frequency and a second range below the spurious frequency. Within the first and second ranges, the driving frequency is varied in directions that make the output voltage track a target voltage. If the driving frequency arrives at the lower limit of the first range, it jumps to a switchover frequency in the second range. The first range can be used to generate a comparatively low output voltage, and the second range to generate a comparatively high output voltage.

摘要翻译： 具有数字控制电路的电源通过以数字控制的驱动频率驱动具有交流电压的压电换能器来产生输出电压。 为了跳过杂散频率，驱动频率在杂散频率之上的第一范围和低于寄生频率的第二范围之间切换。 在第一和第二范围内，驱动频率在使输出电压跟踪目标电压的方向上变化。 如果驱动频率达到第一范围的下限，则跳转到第二范围内的切换频率。 第一范围可以用于产生比较低的输出电压，而第二范围可以用于产生比较高的输出电压。

公开(公告)号：US5764006A

公开(公告)日：1998-06-09

申请号：US539440

申请日：1995-10-05

申请人： Tatsuo Amanuma ,  Toru Kosaka

发明人： Tatsuo Amanuma ,  Toru Kosaka

IPC分类号： G03B17/00 ,  H02P1/16 ,  H02P7/00 ,  H02P1/54

CPC分类号： H02P7/04

摘要： A film driving circuit that is capable of normal driving and reverse driving to drive-control a first motor and a second motor each rotating in only one direction. The motor driving circuit is structured so the first motor driving and the second motor driving is controlled by four switching elements composing a bridge circuit. The first motor connects to the connecting points of two of the switching elements. The second motor connects to the connecting points of the other two of the four switching elements. A CPU controls the first motor and the second motor by controlling the on-off status of the four switching elements.

摘要翻译： 一种能够正常驱动和反向驱动以驱动控制仅在一个方向上旋转的第一电动机和第二电动机的胶片驱动电路。 电动机驱动电路构成为第一电动机驱动和第二电动机驱动由组成桥式电路的四个开关元件控制。 第一个电机连接到两个开关元件的连接点。 第二电动机连接到四个开关元件中的另外两个的连接点。 CPU通过控制四个开关元件的开 - 关状态来控制第一马达和第二马达。

公开(公告)号：US5696853A

公开(公告)日：1997-12-09

申请号：US23360

申请日：1993-02-26

申请人： Takashi Kawana ,  Kaoru Seto ,  Manabu Sakakibara ,  Shinichiro Maekawa ,  Toru Kosaka

发明人： Takashi Kawana ,  Kaoru Seto ,  Manabu Sakakibara ,  Shinichiro Maekawa ,  Toru Kosaka

IPC分类号： H04N1/405 ,  G06K9/42 ,  H04N1/40

CPC分类号： H04N1/4055 ,  H04N1/4056

摘要： On the basis of inputted multivalued image data, direction of growth is decided from a density pattern having a plurality of growth directions and a density pattern is caused to grow based upon the growth direction that has been decided. As a result, character images are formed sharply and high-quality half-tone images exhibiting reduced density irregularity can be produced.

摘要翻译： 基于输入的多值图像数据，从具有多个生长方向的浓度模式确定生长方向，并且使密度模式基于已经确定的生长方向而增长。 结果，字符图像形成锐利，并且可以产生呈现减小的密度不规则性的高质量半色调图像。

公开(公告)号：US5446550A

公开(公告)日：1995-08-29

申请号：US25800

申请日：1993-03-03

申请人： Shinichiro Maekawa ,  Kaoru Seto ,  Takashi; Kawana ,  Toru Kosaka

发明人： Shinichiro Maekawa ,  Kaoru Seto ,  Takashi; Kawana ,  Toru Kosaka

IPC分类号： B41J2/52 ,  B41J29/46 ,  H04N1/23 ,  H04N1/405 ,  H04N1/21

CPC分类号： H04N1/4056

摘要： An image processing apparatus in which a density pattern is generated which corresponds to input image data. Growth direction of the density pattern is controlled by generating a density pattern in a prescribed direction, and generating a density pattern in a direction based on a random signal. As a result, when printing the image data based on the generated density patterns, there is no joining between adjacent pixels and a high-quality image is produced.

摘要翻译： 一种其中生成与输入图像数据相对应的浓度图案的图像处理装置。 密度图案的生长方向通过在规定的方向上生成浓度图案，并且基于随机信号在方向上产生浓度图案来控制。 结果，当基于生成的密度图案打印图像数据时，相邻像素之间不存在连接，并且产生高质量图像。

公开(公告)号：US5172155A

公开(公告)日：1992-12-15

申请号：US640921

申请日：1991-01-14

申请人： Toru Kosaka

发明人： Toru Kosaka

IPC分类号： G03B13/36 ,  G02B7/32 ,  G03B17/38

CPC分类号： G02B7/32

摘要： A remote control apparatus for an auto-focus camera according to the present invention has a transmitter for transmitting a light signal for remote control, and a light receiver producing a pair of output signals reciprocally varying in conformity with a light receiving position on a light receiving surface thereof which is in a distance measurement range in a photographing picture plane. When the light receiver receives the light signal for remote control transmitted from the transmitter, a control signal for starting a photographing operation is produced on the basis of the sum of the pair of output signals. The output signals are also used for the production of a light receiving position signal for range finding.

摘要翻译： 根据本发明的用于自动对焦照相机的遥控装置具有用于发送用于遥控的光信号的发射器，以及产生一对输出信号的光接收器，该输出信号在光接收时与光接收位置一致 其表面在拍摄画面中处于距离测量范围。 当光接收器接收到从发送器发送的用于远程控制的光信号时，基于一对输出信号的和产生用于开始拍摄操作的控制信号。 输出信号也用于生产用于测距的光接收位置信号。

公开(公告)号：US08971751B2

公开(公告)日：2015-03-03

申请号：US13530205

申请日：2012-06-22

申请人： Toru Kosaka

发明人： Toru Kosaka

IPC分类号： G03G15/00 ,  H01L41/04

CPC分类号： G03G15/80 ,  H01L41/042

摘要： A piezoelectric transducer driver configured to drive a piezoelectric transducer for converting an inputted alternating-current voltage, includes: a drive circuit configured to generate the alternating-current voltage to be inputted into the piezoelectric transducer; a frequency controller configured to control a frequency of the alternating-current voltage as a drive frequency to be applied to the piezoelectric transducer; and a pulse generation circuit configured to generate a drive pulse having a switching frequency corresponding to the drive frequency, and to output the drive pulse to the drive circuit. The drive circuit includes a switching element configured to generate the alternating-current voltage by executing a switching operation corresponding to a pulse width of the drive pulse, and the pulse generation circuit changes the pulse width depending on the switching frequency.

摘要翻译： 一种被配置为驱动用于转换输入的交流电压的压电换能器的压电换能器驱动器，包括：驱动电路，被配置为产生要输入到压电换能器的交流电压; 频率控制器，其被配置为将所述交流电压的频率控制为施加到所述压电换能器的驱动频率; 以及脉冲发生电路，被配置为产生具有与驱动频率对应的开关频率的驱动脉冲，并将驱动脉冲输出到驱动电路。 驱动电路包括：开关元件，被配置为通过执行与驱动脉冲的脉冲宽度对应的开关操作来产生交流电压，并且脉冲发生电路根据开关频率来改变脉冲宽度。

公开(公告)号：US08476889B2

公开(公告)日：2013-07-02

申请号：US12801157

申请日：2010-05-25

申请人： Toru Kosaka

发明人： Toru Kosaka

IPC分类号： G05F1/00 ,  H01L41/00 ,  H02N2/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36

CPC分类号： H02M3/33515 ,  B41J2/45 ,  G03G15/80 ,  H01L41/044

摘要： A piezoelectric transformer driving device includes a piezoelectric transformer for outputting an alternating high voltage, a switching control part configured to control the control frequency of the control signal, a reference voltage waveform generation part configured to switch between a first voltage value, a second voltage value and a third voltage value, a monitor voltage generation part configured to generate a monitor voltage waveform based on the high voltage output from the piezoelectric transformer, and a comparison part configured to compare the reference voltage waveform with the monitor voltage waveform to generate a comparison result, and configured to supply the comparison result to the switching control part.

摘要翻译： 一种压电变压器驱动装置，包括用于输出交流高压的压电变压器，被配置为控制控制信号的控制频率的开关控制部，基准电压波形生成部，被配置为在第一电压值，第二电压值 以及第三电压值，被配置为基于从所述压电变压器输出的高电压产生监视电压波形的监视电压产生部分和被配置为将所述参考电压波形与所述监视电压波形进行比较以产生比较结果的比较部分 并且被配置为将比较结果提供给切换控制部。

公开(公告)号：US08350550B2

公开(公告)日：2013-01-08

申请号：US12861975

申请日：2010-08-24

申请人： Toru Kosaka

发明人： Toru Kosaka

IPC分类号： G05F1/00

CPC分类号： H02M3/335 ,  G03G15/80 ,  H01L41/044

摘要： A power unit includes: a frequency divider to divide a clock signal in a second frequency-division ratio based on a first frequency-division ratio and to output a driving pulse; a switching device driven by the driving pulse; a piezoelectric transformer to output an alternating-current high voltage when receiving an intermittent voltage from the switching device; a comparison device to compare a digital signal corresponding to the piezoelectric transformer output voltage with a target voltage and to output a comparison result; a controller to control the first frequency-division ratio based on the comparison result; a first holding device to hold the controlled first frequency-division ratio; a first computing device to determine the second frequency-division ratio by performing computation using a first correction value and the first frequency-division ratio held by the first holding device; and a second holding device to hold the second frequency-division ratio determined by the first computing device.

摘要翻译： 功率单元包括：分频器，用于基于第一分频比以第二分频比划分时钟信号并输出​​驱动脉冲; 由驱动脉冲驱动的开关装置; 压电变压器，当从所述开关装置接收到间歇电压时，输出交流高电压; 比较装置，用于将对应于压电变压器输出电压的数字信号与目标电压进行比较并输出比较结果; 基于比较结果控制第一分频比的控制器; 第一保持装置，用于保持受控的第一分频比; 第一计算装置，通过使用由所述第一保持装置保持的第一校正值和所述第一分频比进行计算来确定所述第二分频比; 以及第二保持装置，用于保持由第一计算装置确定的第二分频比。