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1. 发明授权

US4545653A Focusing elements and system for producing a prescribed energy distribution along an axial focal zone 失效
标题翻译：聚焦元件和系统用于沿着轴向焦点区域产生规定的能量分布
公开(公告)号：US4545653A
公开(公告)日：1985-10-08
申请号：US542132
申请日：1983-10-14
申请人： Bryon B. Brenden , James T. Russell
发明人： Bryon B. Brenden , James T. Russell
IPC分类号： G02B5/00 , G11B7/085 , G02B13/18
CPC分类号： G11B7/085 , G02B5/00
摘要： An optical playback system for reading data from a record includes a focusing system for focusing a scanning light beam onto data on the record without need for precision positioning of the record and optical elements of the system. The light beam is modulated by the data and then transmitted to a light detector to produce a playback data signal corresponding to the recorded data. The focusing system includes a source of light having an axially symmetric intensity distribution and a lens designed to focus such light into a focal zone with a specified intensity distribution along the zone. This distribution is preferably uniform so as to provide the detector with a modulated light beam of uniform average intensity regardless of the position of the record along to focal zone . The lens is but one member of an entire family of nonconical, aspherical axicon-type focusing elements designed in accordance with a method described herein to focus energy from given source to a prescribed focal zone intensity distribution.
摘要翻译：用于从记录读取数据的光学回放系统包括聚焦系统，用于将扫描光束聚焦到记录上的数据上，而不需要对系统的记录和光学元件进行精确定位。光束被数据调制，然后发送到光检测器，以产生对应于记录数据的重放数据信号。聚焦系统包括具有轴向对称强度分布的光源和设计成将这种光聚焦成沿着该区域具有特定强度分布的聚焦区域的透镜。该分布优选是均匀的，以便为检测器提供均匀平均强度的调制光束，而不管记录沿着焦点区域的位置如何。透镜仅是根据本文所述的方法设计的整个非球面的非球面旋转型聚焦元件的一个部件，以将来自给定光源的能量聚焦到规定的焦点区域强度分布。

2. 发明授权

US4622284A Process of using metal azide recording media with laser 失效
标题翻译：使用激光金属叠氮化物记录介质的方法
公开(公告)号：US4622284A
公开(公告)日：1986-11-11
申请号：US585175
申请日：1984-03-01
申请人： John L. West , James T. Russell
发明人： John L. West , James T. Russell
IPC分类号： G03C1/695 , G11B7/244 , G11B7/246 , G11B7/249 , G11B7/253 , G11B7/257 , G03C5/16 , G01D15/14 , G01D15/34
CPC分类号： G11B7/246 , G03C1/695 , G11B7/249 , G11B7/253 , G11B7/257 , G11B7/2585 , Y10S430/146
摘要： A recording medium utilizing metal azides as an energy amplifying substance is disclosed. A photosensitive material comprises an energy absorptive dye and a metal azide dispersed in an inert binder. Low to moderate pulses of laser light cause the azide particles to react exothermally creating a void in the photosensitive material which can be read by an optical readout device.
摘要翻译：公开了一种利用金属叠氮化物作为能量放大物质的记录介质。感光材料包括能量吸收染料和分散在惰性粘合剂中的金属叠氮化物。低至中等的激光脉冲导致叠氮化物颗粒发生放热反应，从而在感光材料中产生可由光学读出装置读取的空隙。

3. 发明授权

US4321700A Optical track segment intercept apparatus 失效
标题翻译：光轨段拦截装置
公开(公告)号：US4321700A
公开(公告)日：1982-03-23
申请号：US32367
申请日：1979-04-23
申请人： James T. Russell
发明人： James T. Russell
IPC分类号： G11B7/0033 , G11B7/007 , G11B7/08 , G11B7/085 , G11B7/09 , G11B7/135 , G11B27/00 , G11B27/10 , H04N5/76 , G11B7/00 , G02B27/17 , G11B3/74 , G11B15/52
CPC分类号： G11B7/1362 , G11B27/002 , G11B27/10 , G11B27/102 , G11B7/0033 , G11B7/007 , G11B7/08 , G11B7/085 , G11B7/09 , G11B7/135 , H04N5/76
摘要： A track intercept apparatus is described for use in an optical playback machine which plays back data recorded on an optical record in track segments. The apparatus deflects the scanning light beam of such machine so that the light beam intercepts each selected track segment properly when the scan is initiated. A track intercept control circuit is employed having storage means for storage of variable values of track alignment data, adjust means for producing an adjustment signal corresponding to the stored data which is applied to a light beam deflection means, and timing means for controlling gating circuitry and for coordinating events within the circuit with the operation of the playback machine as a whole. One embodiment of the invention includes a circuit which compensates for track-following corrections made during scanning by returning the scanning light beam to a stored starting position. Another embodiment has a circuit for electronically aligning the scanner optics. A third embodiment includes a circuit for using data track addresses to direct the scanning light beam to the correct track. A fourth embodiment has a circuit which combines the first three embodiments.
摘要翻译：磁道拦截装置被描述为用于回放记录在轨道段中的光学记录上的数据的光学重放机。该装置使这种机器的扫描光束偏转，使得当扫描开始时，光束适当地拦截每个选定的轨迹段。采用轨道截距控制电路，具有用于存储轨道对准数据的可变值的存储装置，用于产生对应于应用于光束偏转装置的存储数据的调节信号的调整装置，以及用于控制门控电路的定时装置，用于协调电路内的事件与整个播放机的操作。本发明的一个实施例包括补偿通过将扫描光束返回到存储的起始位置而在扫描期间进行跟踪校正的电路。另一实施例具有用于电子对准扫描仪光学元件的电路。第三实施例包括使用数据轨道地址将扫描光束引导到正确轨道的电路。第四实施例具有组合前三个实施例的电路。

4. 发明授权

US4495609A Recording and playback system 失效
标题翻译：录音和播放系统
公开(公告)号：US4495609A
公开(公告)日：1985-01-22
申请号：US324128
申请日：1981-11-23
申请人： James T. Russell
发明人： James T. Russell
IPC分类号： G11B7/003 , G11B7/08 , G11B7/12 , G11B7/24 , G11B20/00 , G11B20/10 , G11B27/00 , G11B27/032 , G11B27/10 , H04N5/76 , H04N5/91 , H04N9/79 , H04N5/84
CPC分类号： G11B7/24 , G11B20/00007 , G11B20/10527 , G11B27/005 , G11B27/032 , G11B27/10 , G11B7/0031 , G11B7/081 , G11B7/12 , H04N5/76 , H04N5/91 , H04N9/79 , G11B2220/90
摘要： Recording and playback optical scanners are relatively movable with respect to each other and with respect to a movable recording medium such as reel of tape adapted for recording variations in applied light. The playback scanner reproduces recorded information at a time delayed with respect to the time of recording, wherein the amount of delay can vary within wide limits. When the playback scanner is moved relative to recording scanner, the playback rate will be faster or slower than the recording rate.
摘要翻译：记录和回放光学扫描仪可相对于彼此相对移动，并且相对于诸如适用于记录所施加的光的变化的可移动的记录介质，例如卷带。回放扫描器在相对于记录时间延迟的时间再现记录的信息，其中延迟量可以在宽的范围内变化。当播放扫描仪相对于记录扫描仪移动时，播放速度将比录制速度更快或更慢。

5. 发明授权

US4320488A Recording and playback system 失效
公开(公告)号：US4320488A
公开(公告)日：1982-03-16
申请号：US935152
申请日：1978-08-21
申请人： James T. Russell
发明人： James T. Russell
IPC分类号： G11B7/003 , G11B7/08 , G11B7/12 , G11B7/24 , G11B20/00 , G11B20/10 , G11B27/00 , G11B27/032 , G11B27/10 , H04N5/76 , H04N5/91 , H04N9/79 , G11B21/10 , H04N5/86
CPC分类号： G11B20/10527 , G11B20/00007 , G11B27/005 , G11B27/032 , G11B27/10 , G11B7/0031 , G11B7/081 , G11B7/12 , G11B7/24 , H04N5/76 , H04N5/91 , H04N9/7925 , G11B2220/90
摘要： Recording and playback optical scanners are relatively movable with respect to each other and with respect to a movable recording medium such as reel of tape adapted for recording variations in applied light. The playback scanner reproduces recorded information at a time delayed with respect to the time of recording, wherein the amount of delay can vary within wide limits. When the playback scanner is moved relative to recording scanner, the playback rate will be faster or slower than the recording rate.

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