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1. 发明专利

JP2005164907A Optical scanner and image forming apparatus furnished with same 审中-公开
标题翻译：光学扫描仪和图像形成装置
公开(公告)号：JP2005164907A
公开(公告)日：2005-06-23
申请号：JP2003402876
申请日：2003-12-02
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： YOSHIKAWA MASANORI , HIROSE HIDEO , NAKANO MASAAKI , KATO IKUKO , FUJIMOTO KEISUKE
IPC分类号： B41J2/44 , G02B7/00 , G02B7/02 , G02B7/198 , G02B26/10 , G02B26/12 , H04N1/036 , H04N1/113
CPC分类号： G02B26/123 , B41J2/473
摘要： PROBLEM TO BE SOLVED: To equalize light quantity distribution on a plane to be scanned in an overfilled type optical scanner in which a plurality of light beams are used.
SOLUTION: The optical scanner comprises: a light source 3 which emits a first light beam L1 and a second light beam L2; a polygon mirror; a first imaging optical system which guides the light beams L1 and L2 to the deflection face of the polygon mirror and forms a line image having a width exceeding the face width of the deflection face on the deflection face; and a second imaging optical system which guides the light beams L1 and L2 reflected from the polygon mirror onto the plane to be scanned on a photoreceptor drum and forms an image on the plane to be scanned. The first imaging optical system is so adjusted that the optical axis A1 of the first light beam L1 and the optical axis A2 of the second light beam L2 are substantially symmetrical about the optical axis AO of the first imaging optical system. The power of the first light beam L1 and the power of the second light beam L2 are balanced on the plane to be scanned.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了使其中使用多个光束的过满型光学扫描器中的待扫描平面上的光量分布相等。解决方案：光学扫描器包括：发射第一光束L1和第二光束L2的光源3; 多面镜第一成像光学系统，其将光束L1和L2引导到多面镜的偏转面，并形成宽度超过偏转面上的偏转面的面宽度的线像; 以及第二成像光学系统，其将从多面镜反射的光束L1和L2引导到感光鼓上的待扫描平面上，并在待扫描的平面上形成图像。第一成像光学系统被调整为使得第一光束L1的光轴A1和第二光束L2的光轴A2基本上对准关于第一成像光学系统的光轴AO。第一光束L1的功率和第二光束L2的功率在待扫描的平面上平衡。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2008262611A Decoding method, decoding device and information reproduction device 审中-公开
标题翻译：解码方法，解码设备和信息再现设备
公开(公告)号：JP2008262611A
公开(公告)日：2008-10-30
申请号：JP2007102421
申请日：2007-04-10
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： FUJIMOTO KEISUKE , MIYASHITA SEIJUN , HINO YASUMORI
IPC分类号： G11B20/18 , G11B20/14 , H03M13/41
摘要： PROBLEM TO BE SOLVED: To solve the problem that in conventional PRML signal processing applied to a reproduction signal with a large waveform distortion, errors occur frequently, so that a signal having a satisfactory reproduction quality cannot be obtained.
SOLUTION: In comparison operation of a path metric in Viterbi decoding, the comparison is calculated by adding a predetermined offset value to a predetermined path metric for a path having no shortest Euclidean distance out of two paths which branch from a predetermined state and join again in the same state, thereby selecting a survival path. For the reproduction signal of large waveform distortion, the survival path can be selected in consideration of the influence of the distortion, so that stable decoding is achieved without an influence of a recording quality.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题为了解决在对具有大的波形失真的再现信号应用的常规PRML信号处理中经常发生错误的问题，因此不能获得令人满意的再现质量的信号。解决方案：在维特比解码中的路径度量的比较操作中，通过将预定偏移值与从预定状态分支的两条路径中没有最短欧几里德距离的路径的预定路径度量相加来计算比较，再次加入同一个州，从而选择一条生存之路。对于大波形失真的再现信号，可以考虑失真的影响来选择存活路径，从而在不影响记录质量的情况下实现稳定的解码。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2007280495A Method and device for controlling optical disk recording pulse 审中-公开
标题翻译：用于控制光盘记录脉冲的方法和装置
公开(公告)号：JP2007280495A
公开(公告)日：2007-10-25
申请号：JP2006104821
申请日：2006-04-06
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： FUJIMOTO KEISUKE , MIYASHITA SEIJUN , HINO YASUMORI , NAKAO MASAHITO , HORIUCHI TERUOKI
IPC分类号： G11B7/0045 , G11B7/125
CPC分类号： G11B7/0062
摘要： PROBLEM TO BE SOLVED: To provide a device and a method for adjusting recording and reproduction parameters which are adaptive to changes in a recording environment or a reproduction environment while shortening a recording/reproducing time including an adjustment time and preventing the deterioration of record with respect to a recording/reproducing device for recording/reproducing information by irradiating a recording medium with a laser beam. SOLUTION: The recording/reproducing time including the adjustment time can be shortened and a test recording area for the use can also be reduced by performing parameter adjustment while changing adjustment items of the recording/reproducing parameters according to changes in the recording/reproducing environments. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于调整记录和再现参数的装置和方法，其适应于记录环境或再现环境中的变化，同时缩短包括调整时间的记录/再现时间并防止劣化关于通过用激光束照射记录介质来记录/再现信息的记录/再现装置的记录。解决方案：可以缩短包括调整时间的记录/再现时间，并且还可以通过在根据记录/再现参数的变化改变记录/再现参数的调整项目的同时执行参数调整来减少使用的测试记录区域。复制环境。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2006146177A Optical scanning device and image forming apparatus provided with the same 审中-公开
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：JP2006146177A
公开(公告)日：2006-06-08
申请号：JP2005295378
申请日：2005-10-07
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： YOSHIKAWA MASANORI , HIROSE HIDEO , FUJIMOTO KEISUKE , NAKANO MASAAKI
IPC分类号： G02B26/10 , B41J2/44 , G02B26/12
摘要： PROBLEM TO BE SOLVED: To achieve both simplification of a device and reduction in vibrations, in an optical scanning device that uses two polygon mirrors. SOLUTION: An optical scanning device 1 is provided with a first optical system 11, including a polygon mirror 113 and a second optical system 21 that includes a polygon mirror 213. The polygon mirror 113 provided in the first optical system 11 and the polygon mirror 213 provided in the second optical system 21 are configured, such that they rotate in mutually opposite directions. Further, the optical scanning device 1 is provided with one BD sensor 120 for detecting laser beams that are scanned with the polygon mirrors 113 and 213, and slits with mutually different opening widths are arranged between the BD sensor 120 and the respective polygon mirrors 113 and 213. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：在使用两个多面镜的光学扫描装置中，为了实现装置的简化和减少振动。解决方案：光学扫描装置1设置有包括多面镜113的第一光学系统11和包括多面镜213的第二光学系统21.设置在第一光学系统11中的多面镜113和设置在第二光学系统21中的多面镜213被构造成使得它们沿相反的方向旋转。此外，光学扫描装置1设置有用于检测用多面镜113和213扫描的激光束的一个BD传感器120，并且在BD传感器120和相应的多面镜113之间布置具有相互不同的开口宽度的狭缝， 213.版权所有（C）2006年，JPO＆NCIPI

5. 发明专利

JP2004272226A Heat fixing device 审中-公开
公开(公告)号：JP2004272226A
公开(公告)日：2004-09-30
申请号：JP2004028556
申请日：2004-02-04
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： ASAKURA KENJI , FUJIMOTO KEISUKE , IMAI MASARU , KATAKABE NOBORU
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a heat fixing device of simple structure capable of surely positioning a heating target member and excitation coil and surely preventing vibration transmission from the excitation coil to the heating target member.
SOLUTION: The heat fixing device is constituted so that an interval between the excitation unit 23 and a heating roller 21 is held as prescribed interval by providing the excitation unit 23 outside the heating roller 21 to which a heating belt as a heating target is provided, forming a positioning part 32 on an end part of the excitation unit 23 and further providing a buffering member 34 between the positioning part 32 and a bearing 31. Thus, the heat fixing device of simple structure capable of surely holding distance between the excitation coil 24 provided in the excitation unit 23 and the heating belt provided to the heating roller 21 as a prescribed value and surely preventing the vibration transmission from the excitation unit 23 to the heating roller 21 is realized.
COPYRIGHT: (C)2004,JPO&NCIPI

6. 发明专利

JP2005164906A Method of supporting reflection mirror in optical scanner, optical scanner and image forming apparatus 审中-公开
标题翻译：在光学扫描仪，光学扫描仪和图像形成装置中支持反射镜的方法
公开(公告)号：JP2005164906A
公开(公告)日：2005-06-23
申请号：JP2003402874
申请日：2003-12-02
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： YOSHIKAWA MASANORI , HIROSE HIDEO , NAKANO MASAAKI , KATO IKUKO , FUJIMOTO KEISUKE
IPC分类号： B41J2/44 , G02B26/10 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To prevent displacement of an image on a plane to be scanned due to the vibration of a reflection mirror in an optical scanner with the reflection mirror.
SOLUTION: The reflection mirror 10 is formed lengthily along the main scanning direction with a luminous flux. The reflection face 20 of the reflection mirror is composed of a curved face having a positive power at least in a main scanning direction and of so called a sculptured surface. The reflection mirror is so supported that the reflection face 20 is vertically tilted following the vertical displacement of the reflection mirror 10 caused by vibration, thus the displacement of the image due to the displacement of the reflection mirror 10 is substantially canceled with the displacement of the image due to the tilt of the reflection face 20.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了防止由于具有反射镜的光学扫描器中的反射镜的振动而导致的待扫描平面上的图像的位移。解决方案：反射镜10沿着主扫描方向以光束长时间形成。反射镜的反射面20至少在主扫描方向上具有正功率的弯曲面和所谓的雕刻面。反射镜被支撑成使得反射面20随着反射镜10的振动的垂直位移而垂直倾斜，因此由于反射镜10的位移而导致的图像的位移基本上被抵消由于反射面20的倾斜导致的图像。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2005158240A Apparatus and method for most likelihood decoding, program, and reproducing apparatus 审中-公开
标题翻译：装置和方法，用于最好的解码，编程和再现装置
公开(公告)号：JP2005158240A
公开(公告)日：2005-06-16
申请号：JP2004311602
申请日：2004-10-26
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： NAKAJIMA TAKESHI , FUJIMOTO KEISUKE , OGURA YOICHI
IPC分类号： G11B20/10 , G11B20/18 , H03M13/41
摘要： PROBLEM TO BE SOLVED: To provide a most likelihood decoding apparatus which has a fast operating speed and a small circuit scale, a method and program for most likelihood decoding of a plurality of reproduced signals by the device, and a reproducing apparatus equipped with the apparatus.
SOLUTION: The most likelihood decoding apparatus is configured to be adaptive to a plurality of reproduced signals from a plurality of recording media of a plurality of types, and is equipped with a pathmetic generating means of generating a plurality of pathmetric values corresponding to a recording medium having one of the types according to a type signal indicating the one type and a path memory means of detecting digital information from the reproduced signals from the recording medium having the one type based upon the plurality of pathmetric values.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有快速操作速度和小电路规模的最可能的解码装置，用于由装置对多个再现信号进行最可能解码的方法和程序，以及装备的再现装置与设备。解决方案：最可能的解码装置被配置为适应于来自多种类型的多个记录介质的多个再现信号，并且配备有路径生成装置，其生成对应于具有根据指示一种类型的类型信号的类型之一的记录介质和根据多个路径测量值从具有一种类型的记录介质的再现信号检测数字信息的路径存储装置。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2005150103A Shielding method and shielding device 有权
标题翻译：屏蔽方法和屏蔽装置
公开(公告)号：JP2005150103A
公开(公告)日：2005-06-09
申请号：JP2004307212
申请日：2004-10-21
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： FUJIMOTO KEISUKE
IPC分类号： G03G15/20 , H05B6/02 , H05B6/14
摘要： PROBLEM TO BE SOLVED: To enable to surely shield leakage flux leaking from a magnetic circuit generating alternating flux.
SOLUTION: A cancellation exciting coil is held by a coil supporting member made of an electric insulation body attached to an arch core. Cancellation current Ic having an antiphase against main current I flowing in a magnetic field generating circuit of an exciting coil is made to flow in a cancellation magnetic field generating circuit equipped with the cancellation exciting coil by an exciting circuit to generate a cancellation flux Mc. Invalid components of AC voltage generated at the cancellation exciting coil is made to be minimum by changing the number of orbiting turns n of the cancellation exciting coil, an area inside the coil and a distribution of winding wires as well as adjusting the cancellation current Ic.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了确保屏蔽从产生交变磁通的磁路泄漏的漏磁通。解决方案：消除励磁线圈由连接到拱芯的电绝缘体制成的线圈支撑构件保持。使得在励磁线圈的磁场产生电路中流动的主电流I具有反相的消除电流Ic通过激励电路在配备有消除励磁线圈的消除磁场产生电路中流动，以产生抵消通量Mc。通过改变取消励磁线圈的绕线匝数N，线圈内的面积和绕组线的分布以及调整抵消电流Ic，使在消除励磁线圈处产生的AC电压的无效分量变得最小。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2005134569A Method of supporting reflection mirror in optical scanner, optical scanner and image forming apparatus 有权
标题翻译：在光学扫描仪，光学扫描仪和图像形成装置中支持反射镜的方法
公开(公告)号：JP2005134569A
公开(公告)日：2005-05-26
申请号：JP2003369479
申请日：2003-10-29
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： YOSHIKAWA MASANORI , HIROSE HIDEO , NAKANO MASAAKI , KATO IKUKO , FUJIMOTO KEISUKE
IPC分类号： B41J2/44 , G02B7/198 , G02B26/10 , H04N1/036 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To support a reflection mirror furnished with a curved reflection face in an optical scanner so as to suppress an influence of vibration.
SOLUTION: The reflection mirror 10 is formed in a long shape along the scanning direction with a luminous flux. The reflection mirror 10 is provided with a thin-plated main body of the reflection mirror, the one face of which serves as a reflection face 20 and upper and lower ribs 21a and 21b extending from the main body of the reflection mirror to the back side. The reflection face 20 is composed of at least a curved face having a positive power towards the scanning direction and of so called a free surface. The reflection mirror 10 are supported at three points with projections 31 through 33 at a first supporting point S1 located in the vicinity of an end part, at a second supporting point S2 located in the vicinity of the other end part and at a third supporting point S3 located in the vicinity of a central part. The distance L1 between a virtual line V1, connecting the first supporting point S1 and the second supporting point S2, and the third supporting point S3 is larger than the sag L2 of a reflection face 20.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了支持在光学扫描器中配备有弯曲反射面的反射镜，以抑制振动的影响。解决方案：反射镜10沿扫描方向以光束形成为长形状。反射镜10设置有反射镜的薄镀主体，其一面用作反射面20，从反射镜的主体向后侧延伸的上下肋21a和21b 。反射面20至少具有朝向扫描方向具有正的功率并且被称为自由表面的曲面。反射镜10在位于端部附近的第一支撑点S1处，在位于另一端部附近的第二支撑点S2和第三支撑点处的突起31至33的三个点处被支撑 S3位于中央部分附近。连接第一支撑点S1和第二支撑点S2的虚拟线V1与第三支撑点S3之间的距离L1大于反射面20的下陷L2。（C）2005， JPO＆NCIPI

10. 发明专利

JP2006302332A Recording and reproducing device 审中-公开
标题翻译：记录和复制设备
公开(公告)号：JP2006302332A
公开(公告)日：2006-11-02
申请号：JP2005117895
申请日：2005-04-15
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： FUJIMOTO KEISUKE , MIYASHITA SEIJUN
IPC分类号： G11B7/0045 , G11B7/125
摘要： PROBLEM TO BE SOLVED: To provide a recording pulse parameter adjusting method capable of shortening adjusting time and preventing unproductive recording deterioration by adjusting a recording pulse parameter about the most effective shortest recording mark shape in a recording and reproducing device for emitting laser beams onto a recording medium to record and reproduce information. SOLUTION: In a recording condition setting method of an optical disk which reads a recording pulse standard parameter, sets a recording pulse parameter of the recording and reproducing device and records and reproduces data in a recordable optical disk with the recording pulse standard parameter preset therein, especially, a parameter about the shortest recording mark shape is adjusted. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种记录脉冲参数调整方法，其能够缩短调整时间并通过在用于发射激光束的记录和再现装置中调整关于最有效的最短记录标记形状的记录脉冲参数来防止非生产性记录劣化到记录介质上以记录和再现信息。解决方案：在读取记录脉冲标准参数的光盘的记录条件设置方法中，设置记录和再现装置的记录脉冲参数，并用记录脉冲标准参数记录和再现可记录光盘中的数据特别地，调整关于最短记录标记形状的参数。版权所有（C）2007，JPO＆INPIT

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