公开(公告)号：US07075384B2

公开(公告)日：2006-07-11

申请号：US11095352

申请日：2005-03-31

申请人： Masahisa Tamura

发明人： Masahisa Tamura

IPC分类号： H03C3/06

CPC分类号： H03L7/1976

摘要： Disclosed is a delta-sigma modulated fractional-N PLL frequency synthesizer which performs fractional-N by modulating a divider that divides output frequencies from a voltage controlled oscillator. Fractional part data F from a register is forwarded to a second adder. A first adder adds output from a delta-sigma modulator to output therefrom delayed and inverted by a delay inverter to generate an artificially random bit stream averaging zero. The second adder adds fractional part data F to output from the first adder to generate an artificially random data sequence averaging a value of fractional part data. The generated data sequence is forwarded to the delta-sigma modulator. An adder adds integral part data to output from the delta-sigma modulator. Added output is forwarded to the divider.

摘要翻译： 公开了一种Δ-Σ调制分数N PLL频率合成器，其通过对从压控振荡器分频输出频率的分频器进行调制来执行分数N。 来自寄存器的小数部分数据F被转发到第二加法器。 第一加法器将来自Δ-Σ调制器的输出相加，由延迟反相器延迟和反相输出，以产生平均为零的人为随机比特流。 第二加法器将小数部分数据F加到从第一加法器输出，以产生对分数部分数据的值进行平均的人为随机数据序列。 生成的数据序列被转发到delta-Σ调制器。 加法器将积分部分数据添加到delta-Σ调制器的输出。 添加的输出转发到分频器。

公开(公告)号：US20050218996A1

公开(公告)日：2005-10-06

申请号：US11095352

申请日：2005-03-31

申请人： Masahisa Tamura

发明人： Masahisa Tamura

IPC分类号： H03M3/02 ,  H03L7/00 ,  H03L7/183 ,  H03L7/197

CPC分类号： H03L7/1976

摘要： Disclosed is a delta-sigma modulated fractional-N PLL frequency synthesizer which performs fractional-N by modulating a divider that divides output frequencies from a voltage controlled oscillator. Fractional part data F from a register is forwarded to a second adder. A first adder adds output from a delta-sigma modulator to output therefrom delayed and inverted by a delay inverter to generate an artificially random bit stream averaging zero. The second adder adds fractional part data F to output from the first adder to generate an artificially random data sequence averaging a value of fractional part data. The generated data sequence is forwarded to the delta-sigma modulator. An adder adds integral part data to output from the delta-sigma modulator. Added output is forwarded to the divider.

摘要翻译： 公开了一种Δ-Σ调制分数N PLL频率合成器，其通过对从压控振荡器分频输出频率的分频器进行调制来执行分数N。 来自寄存器的小数部分数据F被转发到第二加法器。 第一加法器将来自Δ-Σ调制器的输出相加，由延迟反相器延迟和反相输出，以产生平均为零的人为随机比特流。 第二加法器将小数部分数据F加到从第一加法器输出，以产生对分数部分数据的值进行平均的人为随机数据序列。 生成的数据序列被转发到delta-Σ调制器。 加法器将积分部分数据添加到delta-Σ调制器的输出。 添加的输出转发到分频器。

公开(公告)号：US20050136872A1

公开(公告)日：2005-06-23

申请号：US10998891

申请日：2004-11-29

申请人： Atsushi Yoshizawa ,  Masahisa Tamura

发明人： Atsushi Yoshizawa ,  Masahisa Tamura

IPC分类号： H03G3/12 ,  H03G3/30 ,  H04B1/707 ,  H04M1/00 ,  H04M1/725 ,  H04B1/06 ,  H04B7/00

CPC分类号： H03G3/3052

摘要： In order to avoid disappearance of output symbols in accompaniment with DC voltage fluctuations occurring at the timing of switching gain in receiving systems for mobile telephones or the like compatible with W-CDMA systems, the present invention provides a variable gain amplifier circuit, a gain control circuit and a mobile communication terminal apparatus, in which a PGA section is comprised of PGAs having different amplification widths continuously arranged in plural stages as in, two coarse adjustment PGAs, a fine adjustment PGA and a coarse adjustment PGA from the input side to the output side; and a gain control circuit has a memory storing a history of gain control with regard to the PGA section and a logic circuit individually controlling gain of each PGA.

摘要翻译： 为了避免伴随着与W-CDMA系统兼容的移动电话等的接收系统中的切换增益的定时发生的直流电压波动的输出符号的消失，本发明提供了可变增益放大器电路，增益控制 电路和移动通信终端装置，其中PGA部分由具有不同放大宽度的PGA组成，多个阶段连续排列，如两个粗调PGA，微调PGA和粗调PGA从输入侧到输出 侧; 并且增益控制电路具有存储关于PGA部分的增益控制历史的存储器和分别控制每个PGA的增益的逻辑电路。

公开(公告)号：US20050031338A1

公开(公告)日：2005-02-10

申请号：US10903998

申请日：2004-07-30

申请人： Atsushi Koyama ,  Masahisa Tamura ,  Jun Sugita

发明人： Atsushi Koyama ,  Masahisa Tamura ,  Jun Sugita

IPC分类号： G02B7/02 ,  G02B7/14 ,  G03B17/00 ,  G03B17/14 ,  G03B19/02

CPC分类号： G02B7/14 ,  G03B17/14

摘要： An interchangeable lens is disclosed which prevents the camera body and interchangeable lens from being damaged even if an attempt is made to erroneously mount therebetween. The interchangeable lens is a second interchangeable lens whose flange back is the same as that of a first interchangeable lens and includes a protruding portion protruding from a mount reference surface. The protruding amount of the protruding portion is set when the second interchangeable lens has a specific phase relationship with a first camera, so that the protruding portion contacts a first wall portion of the first camera, and is set when the second interchangeable lens has a phase relationship with the first camera other than the specific phase relationship and a bayonet lug of the second interchangeable lens contacts a bayonet lug of the first camera, so that the protruding portion is away from the first wall portion.

摘要翻译： 公开了一种可互换的透镜，其防止相机机身和可互换镜头被损坏，即使尝试在其间错误地安装。 可互换透镜是第二可互换透镜，其法兰背与第一可互换透镜相同，并且包括从安装基准表面突出的突出部分。 当第二可互换镜头与第一相机具有特定相位关系时，突出部分的突出量被设定，使得突出部分接触第一相机的第一壁部分，并且当第二可互换镜头具有相位 与第一相机的关系不同于特定相位关系，并且第二可互换镜头的卡口凸耳接触第一相机的卡口凸耳，使得突出部分远离第一壁部分。

公开(公告)号：US08355626B2

公开(公告)日：2013-01-15

申请号：US13109378

申请日：2011-05-17

申请人： Masanori Ishikawa ,  Masahisa Tamura ,  Tadanori Okada ,  Takumi Yamanaka ,  Kunihiko Sasaki ,  Yasushi Murakami ,  Shota Shimada ,  Takeya Nakayama

发明人： Masanori Ishikawa ,  Masahisa Tamura ,  Tadanori Okada ,  Takumi Yamanaka ,  Kunihiko Sasaki ,  Yasushi Murakami ,  Shota Shimada ,  Takeya Nakayama

IPC分类号： G03B13/22

CPC分类号： G03B13/36 ,  H04N5/23209 ,  H04N5/23212

摘要： A lens-interchangeable camera includes a focus detector performing focus detection and a controller performing a drive control of a lens based on a defocus amount. The controller finishes focusing operation without driving the lens when the defocus amount is out a range of a first in-focus determination width, and performs the focusing operation when the defocus amount is out a range of the first in-focus determination width. The controller finishes the focusing operation without performing the focus detection again after completing the drive when the defocus amount is out a range of a second in-focus determination width, and performs the focus detection again after completing the drive when the defocus amount is out a range of the second in-focus determination width. The second in-focus determination width is set to be greater than the first in-focus determination width and be greater than or equal to a drive limit value.

摘要翻译： 可透镜相机包括执行焦点检测的焦点检测器和基于散焦量执行透镜的驱动控制的控制器。 当散焦量超出第一对焦确定宽度的范围时，控制器完成聚焦操作而不驱动透镜，并且当散焦量在第一对焦确定宽度的范围之外时，执行聚焦操作。 当散焦量在第二对焦确定宽度的范围之外时，在完成驱动之后，控制器完成聚焦操作，而不执行聚焦检测，并且当散焦量为零时完成驱动后再次进行焦点检测 第二对焦确定宽度的范围。 第二对焦确定宽度被设置为大于第一对焦确定宽度并且大于或等于驱动极限值。

公开(公告)号：US20110286733A1

公开(公告)日：2011-11-24

申请号：US13109378

申请日：2011-05-17

申请人： Masanori Ishikawa ,  Masahisa Tamura ,  Tadanori Okada ,  Takumi Yamanaka ,  Kunihiko Sasaki ,  Yasushi Murakami ,  Shota Shimada ,  Takeya Nakayama

发明人： Masanori Ishikawa ,  Masahisa Tamura ,  Tadanori Okada ,  Takumi Yamanaka ,  Kunihiko Sasaki ,  Yasushi Murakami ,  Shota Shimada ,  Takeya Nakayama

IPC分类号： G03B13/34

CPC分类号： G03B13/36 ,  H04N5/23209 ,  H04N5/23212

摘要： A lens-interchangeable camera includes a focus detector performing focus detection and a controller performing a drive control of a lens based on a defocus amount. The controller finishes focusing operation without driving the lens when the defocus amount is out a range of a first in-focus determination width, and performs the focusing operation when the defocus amount is out a range of the first in-focus determination width. The controller finishes the focusing operation without performing the focus detection again after completing the drive when the defocus amount is out a range of a second in-focus determination width, and performs the focus detection again after completing the drive when the defocus amount is out a range of the second in-focus determination width. The second in-focus determination width is set to be greater than the first in-focus determination width and be greater than or equal to a drive limit value.

摘要翻译： 可透镜相机包括执行焦点检测的焦点检测器和基于散焦量执行透镜的驱动控制的控制器。 当散焦量超出第一对焦确定宽度的范围时，控制器完成聚焦操作而不驱动透镜，并且当散焦量在第一对焦确定宽度的范围之外时，执行聚焦操作。 当散焦量在第二对焦确定宽度的范围之外时，在完成驱动之后，控制器完成聚焦操作，而不执行聚焦检测，并且当散焦量为零时完成驱动后再次进行焦点检测 第二对焦确定宽度的范围。 第二对焦确定宽度被设置为大于第一对焦确定宽度并且大于或等于驱动极限值。

公开(公告)号：US07050243B2

公开(公告)日：2006-05-23

申请号：US11042575

申请日：2005-01-24

申请人： Atsushi Koyama ,  Masahisa Tamura

发明人： Atsushi Koyama ,  Masahisa Tamura

IPC分类号： G02B15/14

CPC分类号： G02B7/10 ,  G02B7/026 ,  G02B15/14

摘要： Provided is a lens apparatus having a first holding member that holds a first lens unit and a second holding member that holds the first holding member, in which the first and second holding members are engaged with each other so as to be capable of relative movement by means of a plurality of engagement portions provided circumferentially at unequal intervals including a first interval and a second interval larger than the first interval, and in which there is provided, in a portion between the engagement portions arranged at the second interval in at least one of the first and second holding members, an abutment portion radially abutting the other holding member.

摘要翻译： 提供一种透镜装置，具有保持第一透镜单元的第一保持构件和保持第一保持构件的第二保持构件，第一保持构件和第二保持构件中的第一和第二保持构件彼此接合，以便能够相对移动 多个接合部分的装置，其周向设置在不等间隔处，包括第一间隔和大于第一间隔的第二间隔，并且其中在设置在第二间隔处的接合部分之间的部分中，至少一个 第一和第二保持构件，径向地邻接另一保持构件的抵接部。

公开(公告)号：US20050030410A1

公开(公告)日：2005-02-10

申请号：US10903627

申请日：2004-07-30

申请人： Eiri Tsukatani ,  Masahisa Tamura ,  Jun Sugita ,  Atsushi Koyama

发明人： Eiri Tsukatani ,  Masahisa Tamura ,  Jun Sugita ,  Atsushi Koyama

IPC分类号： G02B7/02 ,  G03B17/14 ,  G03B19/12 ,  H04N5/225

CPC分类号： G03B17/14 ,  G03B19/12

摘要： An interchangeable lens (second interchangeable lens) is disclosed which allows a protruding amount from a mount reference surface of the interchangeable lens to be increased. The second interchangeable lens has a protruding portion protruding from a mount reference surface toward an image plane, has a larger protruding amount than the first interchangeable lens and has the same flange back as the first interchangeable lens. The first camera prevents mounting of the second interchangeable lens by the protruding portion of the second interchangeable lens contacting the first wall portion. The second camera includes a second wall portion provided at a position retreated from the protruding portion. The second camera includes a rotatable mirror member, and the rotation center of the mirror member is positioned on the opposite side of a finder optical system with respect to a plane including an in-plane direction of the mirror member.

摘要翻译： 公开了可互换镜头（第二可互换镜头），其允许来自可更换镜片的安装基准表面的突出量增加。 第二可互换透镜具有从安装基准表面朝向图像平面突出的突出部分，具有比第一可互换透镜更大的突出量并且具有与第一可互换透镜相同的凸缘背。 第一相机防止通过与第一壁部分接触的第二可互换镜头的突出部分来安装第二可互换镜头。 第二照相机包括设置在从突出部分退避的位置处的第二壁部。 第二照相机包括可旋转镜构件，并且镜构件的旋转中心相对于包括镜构件的面内方向的平面定位在取景器光学系统的相对侧上。

公开(公告)号：US5842055A

公开(公告)日：1998-11-24

申请号：US880039

申请日：1997-06-20

申请人： Masahisa Tamura

发明人： Masahisa Tamura

IPC分类号： G02B7/02 ,  G02B5/00 ,  G02B7/10 ,  G02B27/00 ,  G03B9/02 ,  G02B9/00 ,  G02B15/14

CPC分类号： G02B27/0018 ,  G02B5/005 ,  G02B7/10

摘要： A lens barrel or an optical apparatus comprises a lens unit arranged to be movable in an optical axis direction, a plurality of shafts which hold a stop arranged to block undesirable light and which extend in the optical axis direction, and a support member which supports the plurality of shafts while allowing the plurality of shafts to be moved in the optical axis direction, wherein the plurality of shafts are moved by being pushed by the lens unit, thereby moving the stop.

摘要翻译： 镜筒或光学装置包括透镜单元，其布置成可在光轴方向上移动;多个轴，其保持设置成阻挡不期望的光并且沿光轴方向延伸的止挡件;以及支撑构件，其支撑 多个轴，同时允许多个轴沿光轴方向移动，其中多个轴通过被透镜单元推动而移动，从而移动止动件。

公开(公告)号：US5146129A

公开(公告)日：1992-09-08

申请号：US655243

申请日：1991-02-13

申请人： Masahisa Tamura ,  Ichiro Okumura

发明人： Masahisa Tamura ,  Ichiro Okumura

IPC分类号： H01L41/09 ,  H02N2/16

CPC分类号： H02N2/103 ,  H02N2/0015 ,  H02N2/0055

摘要： A motor has at least a vibration rod parallel to the axis of a rotor, in which the vibration rod causes a rotary motion in the rotor. The motor is free from the annular stator showing a large attenuation of vibration and is not associated with the stator support. The motor is also provided with a higher efficiency of energy utilization in comparison with a conventional ultrasonic motor, and is free from the stopping or irregular rotation of the rotor. The vibration rod for rotating the rotor requires a smaller space in comparison with the annular stator in the conventional ultrasonic motor.

摘要翻译： 电动机至少具有平行于转子的轴线的振动杆，其中振动杆在转子中引起旋转运动。 电动机没有环形定子显示出大的振动衰减，并且不与定子支撑件相关联。 与传统的超声波马达相比，电动机还具有更高的能量利用效率，并且不受转子的停止或不规则旋转的影响。 与常规超声波马达中的环形定子相比，用于旋转转子的振动杆需要较小的空间。