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1. 发明授权

US11361471B2 Point cloud occupancy map compression 有权
公开(公告)号：US11361471B2
公开(公告)日：2022-06-14
申请号：US15931349
申请日：2020-05-13
申请人： Apple Inc.
发明人： Khaled Mammou , Yeping Su , David W. Singer , Alexandros Tourapis , Fabrice A. Robinet , Hsi-Jung Wu
IPC分类号： G06T7/50 , G06T9/00 , G06T7/70 , G06T7/20 , A01C3/02 , G08B1/00 , G09B1/00 , G06T1/00 , G11B7/002
摘要： A system comprises an encoder configured to compress attribute information and/or spatial for a point cloud and/or a decoder configured to decompress compressed attribute and/or spatial information for the point cloud. To compress the attribute and/or spatial information, the encoder is configured to convert a point cloud into an image based representation. Also, the decoder is configured to generate a decompressed point cloud based on an image based representation of a point cloud. A block/sub-block organization scheme is used to encode blocks and sub-blocks of an occupancy map used in compressing the point cloud. Binary values are assigned to blocks/sub-blocks based on whether they contain patches projected on the point cloud. A traversal path is chosen that takes advantage of run-length encoding strategies to reduce a size of an encoded occupancy map. Also, auxiliary information is used to further improve occupancy map compression.

2. 发明授权

US08824252B2 Signal clamping device and method thereof and related optical storage system 有权
标题翻译：信号钳位装置及其相关光存储系统
公开(公告)号：US08824252B2
公开(公告)日：2014-09-02
申请号：US11864915
申请日：2007-09-29
申请人： Jia-Hau Lin , Chih-Chung Wu , Hung-Yen Chen , Hao-Hui Yin
发明人： Jia-Hau Lin , Chih-Chung Wu , Hung-Yen Chen , Hao-Hui Yin
IPC分类号： G11B7/002 , G11B7/09 , G11B7/12
CPC分类号： G11B7/0908 , G11B7/121
摘要： The invention discloses a signal clamping device capable of clamping a signal with a clamp level that is set according to a frequency characteristic of the signal and a method thereof and a related optical storage system. The signal clamping device includes an equalizing unit, a determining unit, and a clamping unit. The equalizing unit is utilized for equalizing the signal and generating an equalized signal. The determining unit is utilized for generating an indication signal according to the equalized signal. The clamping unit is utilized for determining a clamp level according to the indication signal and clamping the signal with the clamp level.
摘要翻译：本发明公开了一种信号钳位装置，其能够钳位具有根据信号的频率特性设置的钳位电平的信号及其方法和相关的光学存储系统。信号夹紧装置包括均衡单元，确定单元和夹紧单元。均衡单元用于均衡信号并产生均衡的信号。确定单元用于根据均衡信号产生指示信号。钳位单元用于根据指示信号确定钳位电平，并用钳位电平钳位信号。

3. 发明申请

US20080080340A1 Optical pickup unit capable of preventing a laser diode from destroying from static electricity 审中-公开
标题翻译：能够防止激光二极管从静电中破坏的光学拾取单元
公开(公告)号：US20080080340A1
公开(公告)日：2008-04-03
申请号：US11906508
申请日：2007-10-02
申请人： Takahiko Nishiyama , Hideki Miura
发明人： Takahiko Nishiyama , Hideki Miura
IPC分类号： G11B7/002
CPC分类号： G11B7/1275 , G11B7/127 , G11B7/131 , G11B2007/0006
摘要： An optical pickup unit includes an optical base and at least one laser diode mounted on an outer wall of the optical base. The laser diode has a base portion, and an LD terminal and a GND terminal which extend from the base portion to a rear surface side. Formed on a short-land flexible printed board, conductive patterns enable to short-circuit the LD terminal and the GND terminal of the laser diode at a position apart from the LD terminal.
摘要翻译：光学拾取单元包括光学基座和安装在光学基座的外壁上的至少一个激光二极管。激光二极管具有基部，以及从基部延伸到后表面侧的LD端子和GND端子。导电图案形成在短缺的柔性印刷电路板上，可以使激光二极管的LD端子和GND端子与LD端子隔开。

4. 发明授权

US5506398A Optical data recording and reproducing apparatus and method employing an optical head at the center of a spherical recording medium 失效
标题翻译：光学数据记录和再现装置和方法，其在球形记录介质的中心使用光学头
公开(公告)号：US5506398A
公开(公告)日：1996-04-09
申请号：US365863
申请日：1994-12-29
申请人： Michio Naruto
发明人： Michio Naruto
IPC分类号： G11B7/24 , G11B7/00 , G11B7/002 , G11B7/004 , G11B7/0045 , G11B7/08 , G11B7/085 , G11B7/12 , G11B7/135 , G11B3/70
CPC分类号： G11B7/12 , G11B7/00 , G11B7/08
摘要： An optical disk drive which does not require a high precision servo mechanism and intensive error correction technique. The recording surface of a recording medium is stationary and is completed as a spherical or semi-spherical plane. An optical head is provided at the center of curvature. A laser beam emitted from the optical head, provided at the center of curvature, is displaced physically or electrically, without rotating the recording surface.
摘要翻译：一种不需要高精度伺服机构的光盘驱动器和强化的纠错技术。记录介质的记录表面是静止的，并且完成为球形或半球形平面。光学头设置在曲率中心。设置在曲率中心处的从光学头发射的激光束物理或电气地移位，而不转动记录表面。

5. 发明授权

US07974167B2 Optical disc apparatus, optical information equipment with the optical disc apparatus, and focusing control LSI in the optical disc apparatus 有权
标题翻译：光盘装置，具有光盘装置的光信息设备和聚焦控制LSI在光盘装置中
公开(公告)号：US07974167B2
公开(公告)日：2011-07-05
申请号：US11960973
申请日：2007-12-20
申请人： Kanji Wakabayashi , Yoshiaki Komma , Fumitomo Yamasaki , Toshiyasu Tanaka
发明人： Kanji Wakabayashi , Yoshiaki Komma , Fumitomo Yamasaki , Toshiyasu Tanaka
IPC分类号： G11B7/002
CPC分类号： G11B7/08511 , G11B7/0956 , G11B2007/0006
摘要： In the present invention, at the time of pulling a focus on an information recording surface of a disc, a focus servo is first pulled in a disc surface of the disc, and with the servo in a settled state, a driving signal necessary for following surface wobble is stored, and a focus is pulled in the information recording surface of the disc based upon a signal superimposed with the driving signal and a focus search driving signal.
摘要翻译：在本发明中，在对光盘的信息记录面进行聚焦的时刻，首先在光盘的盘面上拉动聚焦伺服，并且在伺服处于稳定状态时，将跟随所需的驱动信号存储表面摆动，并且基于与驱动信号叠加的信号和焦点搜索驱动信号，将焦点拉到盘的信息记录表面中。

6. 发明申请

US20090086590A1 SIGNAL CLAMPING DEVICE AND METHOD THEREOF AND RELATED OPTICAL STORAGE SYSTEM 有权
标题翻译：信号钳位装置及其方法及相关光存储系统
公开(公告)号：US20090086590A1
公开(公告)日：2009-04-02
申请号：US11864915
申请日：2007-09-29
申请人： Jia-Hau Lin , Chih-Chung Wu , Hung-Yen Chen , Hao-Hui Yin
发明人： Jia-Hau Lin , Chih-Chung Wu , Hung-Yen Chen , Hao-Hui Yin
IPC分类号： G11B7/002
CPC分类号： G11B7/0908 , G11B7/121
摘要： The invention discloses a signal clamping device capable of clamping a signal with a clamp level that is set according to a frequency characteristic of the signal and a method thereof and a related optical storage system. The signal clamping device includes an equalizing unit, a determining unit, and a clamping unit. The equalizing unit is utilized for equalizing the signal and generating an equalized signal. The determining unit is utilized for generating an indication signal according to the equalized signal. The clamping unit is utilized for determining a clamp level according to the indication signal and clamping the signal with the clamp level.
摘要翻译：本发明公开了一种信号钳位装置，其能够钳位具有根据信号的频率特性设置的钳位电平的信号及其方法和相关的光学存储系统。信号夹紧装置包括均衡单元，确定单元和夹紧单元。均衡单元用于均衡信号并产生均衡的信号。确定单元用于根据均衡信号产生指示信号。钳位单元用于根据指示信号确定钳位电平，并用钳位电平钳位信号。

7. 发明申请

US20080279081A1 Optical Device for Recording and Reproducing 审中-公开
标题翻译：用于记录和再现的光学装置
公开(公告)号：US20080279081A1
公开(公告)日：2008-11-13
申请号：US11631352
申请日：2005-06-22
申请人： Petrus Jutte , Johannes De Wit
发明人： Petrus Jutte , Johannes De Wit
IPC分类号： G11B7/002
CPC分类号： G11B7/1376 , G11B7/1275 , G11B2007/0006
摘要： An optical device compatible with at least three different types of information carrier. It comprises a main optical branch comprising detecting means (203), a collimator (201), a first beam splitter (214) at a first distance d1 from the collimator, a second beam splitter (224) at a second distance d2 from the collimator and a third beam splitter (234) at a third distance d3 from the collimator. It also comprises, located substantially perpendicular to the main optical branch—a first optical branch for scanning an information carrier with a first numerical aperture NA1; the first optical branch comprises a first radiation source (211), a first pre-collimator (212) and the first beam splitter (214); —a second optical branch for scanning an information carrier with a second numerical aperture NA2; the second optical branch comprises a second radiation source (221), a second pre-collimator (222) and the second beam splitter (224); —a third optical branch for scanning an information carrier with a third numerical aperture NA3; the third optical branch comprises a third radiation source (231), a beam shaper (232) and the third beam splitter (233); In this optical scanning device, d1>d2>d3 and NA2
摘要翻译：与至少三种不同类型的信息载体兼容的光学设备。它包括主光学分支，包括检测装置（203），准直器（201），距离准直器第一距离d1的第一分束器（214），距离准直仪第二距离d2的第二分束器（224）以及距离准直器第三距离d3的第三分束器（234）。它还包括基本上垂直于主光学分支的位置，第一光学分支用于扫描具有第一数值孔径NA1的信息载体; 第一光学分支包括第一辐射源（211），第一预准直器（212）和第一分束器（214）; - 用于用第二数值孔径NA2扫描信息载体的第二光学分支; 第二光学分支包括第二辐射源（221），第二预准直器（222）和第二分束器（224）; - 用于扫描具有第三数值孔径NA3的信息载体的第三光学分支; 第三光学分支包括第三辐射源（231），光束整形器（232）和第三分束器（233）; 在该光学扫描装置中，d1> d2> d3和NA2

8. 发明申请

US20080074966A1 Optical Pickup 审中-公开
标题翻译：光学拾音
公开(公告)号：US20080074966A1
公开(公告)日：2008-03-27
申请号：US11660101
申请日：2005-09-21
申请人： Masayuki Ono , Masahiko Nishimoto , Tatsuya Nakamori , Naoki Nakanishi
发明人： Masayuki Ono , Masahiko Nishimoto , Tatsuya Nakamori , Naoki Nakanishi
IPC分类号： G11B7/002
CPC分类号： G11B7/0903 , G11B7/0941 , G11B7/1353
摘要： An optical pickup wherein a main beam and at least two sub-beams are collected on a disc and a tracking error signal is detected from push pull signals generated from each beam. A phase of the push pull signal generated from the first sub-beam is shifted from a phase of the push pull signal generated from the second sub-beam by substantially 180°. A phase difference is given to a part of the first sub-beam (10) and a part of the second sub-beam (11) by a diffraction optical element (2) which generates the first sub-beam (10) and the second sub-beam (11).
摘要翻译：一种光学拾取器，其中主光束和至少两个子光束被收集在光盘上，并且从由每个光束产生的推挽信号检测跟踪误差信号。从第一子光束产生的推挽信号的相位从从第二子光束产生的推挽信号的相位基本上偏离180°。通过产生第一子光束（10）的衍射光学元件（2）向第一子光束（10）的一部分和第二子光束（11）的一部分提供相位差，并且第二子光束子光束（11）。

9. 发明授权

US4935917A Memory disk having some capacity recording areas on a spiral track 失效
标题翻译：在螺旋轨道上具有一些容量记录区的存储盘
公开(公告)号：US4935917A
公开(公告)日：1990-06-19
申请号：US249277
申请日：1988-09-22
申请人： Tomohisa Yoshimaru
发明人： Tomohisa Yoshimaru
IPC分类号： G11B7/00 , G11B7/002 , G11B7/004 , G11B7/007 , G11B19/20 , G11B19/24 , G11B20/12 , G11B21/08 , G11B27/10 , G11B27/30
CPC分类号： G11B19/20 , G11B19/24 , G11B20/12 , G11B21/083 , G11B27/10 , G11B27/105 , G11B27/3027 , G11B7/004 , G11B7/007 , G11B2220/20 , G11B2220/2537
摘要： An optical disk apparatus has an optical head for recording information on or reproducing information from an optical disk. The optical disk has a number of spiral or concentric tracks and a number of sectors formed along the circumferential direction of the disk. The sectors are divided into a plurality of sector blocks along the circumferential direction of the disk. Each sector block includes a different number of sectors which are continuous along the circumferential direction and which have a substantially constant linear length. A memory stores at least the speed data for maintaining a constant relative speed between the optical head and optical disk and is determined for each block group having a predetermined number of blocks. Speed data corresponding to the designated sector block is read out from the memory and is supplied to a velocity control circuit. A motor is driven to maintain a constant linear velocity between the optical head and the tracks of the optical disk.

10. 发明授权

US4710910A Safe loading-unloading system for tray in compact disc player 失效
标题翻译：安全的卸载系统托盘在光盘播放器
公开(公告)号：US4710910A
公开(公告)日：1987-12-01
申请号：US881848
申请日：1986-07-03
申请人： Kazushige Ejiri
发明人： Kazushige Ejiri
IPC分类号： G11B7/00 , G11B7/002 , G11B7/004 , G11B17/02 , G11B17/04 , G11B17/056 , G11B3/10
CPC分类号： G11B17/056
摘要： A safe loading-unloading system for a tray used with a compact disc player. The system has lock arms provided on slide plates which move longitudinally along the side walls of a player body during loading and provided with lock pins for the purpose of semi-fixing a tray loaded in the player body, and relief holes formed in first and second apertures which are so formed as to allow the lock arms to be inserted into the side walls of the player body and the slide plates such that the lock pins are brought into contact with the side walls except when the tray is in its initial loading position and pass through the relief holes in the initial loading position of the tray. By this structure, it is possible to safely prevent the loading and unloading of the tray during the reproduction and to utilize most conventinal system for practising the complete lock, allowig an increase in cost to be removed.
摘要翻译：用于与光盘播放器一起使用的托盘的安全装载卸载系统。该系统具有设置在滑板上的锁定臂，其在装载期间沿着播放器主体的侧壁纵向移动并且设置有用于半固定装载在播放器主体中的托盘的锁定销，以及形成在第一和第二孔被形成为允许锁定臂插入到演奏者主体和滑板的侧壁中，使得锁定销与侧壁接触，除了当托盘处于其初始装载位置时，在托盘的初始装载位置通过释放孔。通过这种结构，可以在再现期间安全地防止托盘的装载和卸载，并且利用大多数传统系统来执行完整的锁定，从而允许增加要移除的成本。

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