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1. 发明授权

US4047241A Capacitive switch 失效
标题翻译：电容开关
公开(公告)号：US4047241A
公开(公告)日：1977-09-06
申请号：US676122
申请日：1976-04-12
申请人： Edward H. Lau , Francis C. Marino
发明人： Edward H. Lau , Francis C. Marino
IPC分类号： G06F3/02 , H01H13/00 , H03K17/975 , H03K17/98 , H04M1/23 , H05K7/08 , H01G5/01
CPC分类号： H03K17/975 , H03K17/98 , H05K7/08
摘要： A capacitive switch includes: an electrical circuit formed by two spaced pads of conductive material on an insulative substrate; and a capacitive coupling member on the end of a keystem wherein the end of the keystem has a looped ribbon formed by two layers of insulating material sandwiching a layer of conductive material. As the keystem is urged toward the substrate a monotonically increasing area of the ribbon mechanically contacts the pads so that a monotonically increasing capacitive coupling is made between the two spaced pads.
摘要翻译：一种电容式开关包括：在绝缘衬底上由两个间隔的导电材料垫片形成的电路; 以及电容耦合构件，其在所述键系统的端部上，其中所述键系统的端部具有由夹持导电材料层的两层绝缘材料形成的环形带。当键系被推向衬底时，带的单调增加的面积机械地接触焊盘，使得在两个间隔的焊盘之间形成单调增加的电容耦合。

2. 发明授权

US4215943A Motor driven single element printer 失效
标题翻译：电机驱动单元打印机
公开(公告)号：US4215943A
公开(公告)日：1980-08-05
申请号：US917554
申请日：1978-06-21
申请人： Edward H. Lau
发明人： Edward H. Lau
IPC分类号： B41J1/60 , B41J7/50 , B41J7/94
CPC分类号： B41J7/94 , B41J1/60 , B41J7/50
摘要： A printer has a horizontally movable carrier which supports a print head including a print element on which are disposed type characters in a two dimensional array with the element controllably movable by motors in two degrees of freedom to selectively position each type character opposite a record-medium-carrying platen for printing. The print head is on a rocker having a cam follower which cooperates with a cam on a shaft driven by a variable speed motor which is also on the carrier. During printing the motor speed is controlled so that the print element is driven against the platen with a force related to the particular character being printed. The motor speed is further controlled so that there is not only a minimum wait between the printing of successive characters but there are also minimum accelerations and decelerations of the motor.
摘要翻译：打印机具有可水平移动的托架，其支撑包括打印元件的打印头，印刷元件以两维阵列布置在其上的类型字符，其中该元件可由两个自由度的电动机可控制地移动，以选择性地将每个类型字符与记录介质相对用于打印。打印头位于具有凸轮从动件的摇臂上，该凸轮从动件与由也在载体上的变速马达驱动的轴上的凸轮配合。在打印期间，控制电动机速度，使得打印元件以与要打印的特定字符相关的力抵靠压板驱动。进一步控制电动机速度，使得在连续字符的打印之间不仅具有最小等待时间，而且电机的最小加速度和减速度也是最小的。

3. 发明授权

US4054944A Finger operated switching device 失效
标题翻译：手指开关装置
公开(公告)号：US4054944A
公开(公告)日：1977-10-18
申请号：US653236
申请日：1976-01-28
申请人： Edward H. Lau
发明人： Edward H. Lau
IPC分类号： H01H5/02 , H01H51/27
CPC分类号： H01H5/02 , H01H2215/028 , H01H2215/042 , H01H2221/04 , H01H2221/048 , H01H2239/006
摘要： A finger operated switching device includes a key assemblage having a key and a key magnet which moves relative to a biasing magnet wherein the magnets are so dimensioned and mutually positioned so that the key assemblage is biased to a retracted position and when the key assemblage is pushed to an extended position the force required first increases to a peak and then rapidly decreases.
摘要翻译：手指切换装置包括具有钥匙和钥匙磁体的钥匙组合件，其相对于偏置磁体移动，其中磁体的尺寸和相互定位，使得钥匙组件被偏压到缩回位置，并且当按下钥匙组件时到延伸位置，所需的力首先增加到峰值然后迅速降低。

4. 发明授权

US4192619A Electronically controlled printer system 失效
标题翻译：电子控制打印机系统
公开(公告)号：US4192619A
公开(公告)日：1980-03-11
申请号：US650414
申请日：1976-01-19
申请人： Edward H. Lau
发明人： Edward H. Lau
IPC分类号： B41J1/60 , B41J7/50 , B41J7/94
CPC分类号： B41J1/60 , B41J7/50 , B41J7/94
摘要： A printer has a print shell on which are disposed type characters in a two dimensional array with the shell controllably movable in two degrees of freedom to selectively position each type character opposite a record-medium-carrying platen for printing. In addition, during printing the shell is driven against the platen with a force related to the particular character being printed, and associated with the printing is an indexing or transverse spacing of the print shell to expose new portions of the record medium for printing. As each character is to be printed, a coded combination of signals associated with such character is translated and converted to four further signals wherein two of which control the movement of the print shell in the two axes of freedom to select the desired type character for printing while a third signal controls the velocity at which the print shell is driven against the platen to insure uniform shading of the print regardless of the impact surface of the character and the fourth signal controls the amount of transverse spacing to provide proportional as well as monospacing of the printed characters.
摘要翻译：打印机具有打印外壳，在其上以两维阵列布置类型字符，其中外壳以两个自由度可控地移动，以选择性地定位与用于打印的记录介质携带台板相对的每个类型字符。此外，在打印期间，外壳以与要打印的特定字符相关的力被驱动抵靠压板，并且与印刷相关联的是打印外壳的分度或横向间隔以露出用于打印的记录介质的新部分。随着每个字符被打印，与这种字符相关联的信号的编码组合被转换并转换成四个另外的信号，其中两个信号控制打印外壳在两个自由轴中的移动，以选择期望的类型字符进行打印而第三信号控制打印外壳相对于压盘驱动的速度，以确保印刷品的均匀阴影，而不管字符的冲击表面如何，第四信号控制横向间隔的量以提供成比例的以及均匀的印刷字符。

5. 发明授权

US4022313A Ribbon lifting mechanism 失效
标题翻译：丝带提升机构
公开(公告)号：US4022313A
公开(公告)日：1977-05-10
申请号：US633441
申请日：1975-11-19
申请人： Edward H. Lau , Mosi Chu
发明人： Edward H. Lau , Mosi Chu
IPC分类号： B41J35/14
CPC分类号： B41J35/14
摘要： In a printer wherein a ribbon is driven against a platen by a print element there is provided a ribbon lifting mechanism having a one revolution motor which drives, via a n-to-1 reduction gear, a ribbon guide to pivot to different positions whereby different transverse portions of the ribbon are interposed between the impact region of the print element and the platen.
摘要翻译：在其中通过打印元件将色带驱动抵靠压板的打印机中，提供了一种色带提升机构，其具有通过n对1减速齿轮驱动经过n到1减速齿轮的色带引导件枢转到不同位置的一转马达，由此不同带的横向部分插入在打印元件的冲击区域和压板之间。

6. 发明授权

US5447380A Thermal printer 失效
标题翻译：热敏打印机
公开(公告)号：US5447380A
公开(公告)日：1995-09-05
申请号：US190230
申请日：1994-01-31
申请人： Kenneth Colonel , Edward H. Lau , Dalton C. Marris
发明人： Kenneth Colonel , Edward H. Lau , Dalton C. Marris
IPC分类号： B41J2/325 , B41J2/32 , B41J29/02
CPC分类号： B41J2/325
摘要： A thermal printer is provided which can operate at high speeds either as a direct thermal printer or a thermal transfer printer. The thermal printer includes a frame, a front door assembly pivotally connected to the frame and having a thermal head secured thereto. The front door assembly positions the thermal head to facilitate recording of information on a recording medium when the door is closed as well as dissipating heat generated by the thermal print head. A platen roller is positioned within the frame which conveys the recording medium between the thermal head and the platen roller. The thermal printer also provides interference shielding which maintains security of printed data. The thermal printer is also configured to allow operation in a rigorous environment.
摘要翻译：提供热敏打印机，可以作为直接热敏打印机或热转印打印机以高速运行。热敏打印机包括框架，前门组件，其枢转地连接到框架并且具有固定到其上的热敏头。前门组件定位热敏头以便于当门关闭时将信息记录在记录介质上，以及消散由热打印头产生的热量。压纸辊定位在框架内，将记录介质传送到热敏头和压纸辊之间。热敏打印机还提供干扰屏蔽，保持打印数据的安全性。热敏打印机还被配置为允许在严格的环境中操作。

7. 发明授权

US4496254A Method and apparatus for mounting a daisy print wheel on the shaft of a print head 失效
标题翻译：将菊花轮安装在打印头的轴上的方法和装置
公开(公告)号：US4496254A
公开(公告)日：1985-01-29
申请号：US476502
申请日：1983-03-18
申请人： Edward H. Lau , Kenneth Colonel
发明人： Edward H. Lau , Kenneth Colonel
IPC分类号： B41J1/24 , B41J1/60
CPC分类号： B41J1/243
摘要： Apparatus for releasably attaching a daisy print wheel to a splined shaft of an angular drive such that the print wheel can be driven in angular rotation with substantially no backlash. The apparatus comprises a splined hub fixed to the print wheel and slidably engageable with the splined shaft and a holder mounted on the hub for movement between a locking position in which the hub is locked on the splined shaft with interference fit and a released position in which the hub with the holder thereon is slidably removable from the splined shaft together with the print wheel. The hub includes a plurality of angular segments of cantilever formation which are pressed into the spaces between the splines on the drive shaft with interference fit by the engagement of the holder in its locking position. The holder is axially movable on the hub in traveling between the locking and release positions and is not normally removable from the hub.
摘要翻译：用于将菊花盘可释放地附接到角度驱动器的花键轴的装置，使得打印轮可以基本上没有齿隙的角度旋转驱动。该装置包括固定到打印轮并与花键轴可滑动地接合的花键轮毂和安装在轮毂上的保持架，用于在轮毂与过盈配合的花键轴上锁定的锁定位置和释放位置之间移动其上的保持器的轮毂与打印轮一起可滑动地从花键轴移除。轮毂包括多个悬臂结构的角形段，其被压入驱动轴上的花键之间的空间中，通过保持器在其锁定位置的接合而过盈配合。保持器在轮毂上可在锁定和释放位置之间运动时可轴向移动，并且通常不能从轮毂移除。

8. 发明授权

US4000512A Width modulated magnetic recording 失效
标题翻译：宽度调制磁记录
公开(公告)号：US4000512A
公开(公告)日：1976-12-28
申请号：US641609
申请日：1975-12-17
申请人： Edward H. Lau
发明人： Edward H. Lau
IPC分类号： G11B20/14 , G11B5/09
CPC分类号： G11B20/1411
摘要： In a system for recording bits in elements along a moving magnetic medium wherein a first valued bit is represented by a pulse of a first width, length or duration, and a second valued bit is represented by a pulse of a second width, length or duration, there is included the improvement of changing either the first width or said second width when the bit to be recorded and the bit previously recorded have the same value.
摘要翻译：在用于记录沿着移动磁介质的元素中的位的系统中，其中第一值由第一宽度，长度或持续时间的脉冲表示，而第二值由第二宽度，长度或持续时间的脉冲表示包括当要记录的位和先前记录的位具有相同值时改变第一宽度或第二宽度的改进。

9. 发明授权

US3987282A Shaft position controlling system 失效
标题翻译：轴位置控制系统
公开(公告)号：US3987282A
公开(公告)日：1976-10-19
申请号：US570507
申请日：1975-04-22
申请人： Edward H. Lau , John F. Tweedy, Jr.
发明人： Edward H. Lau , John F. Tweedy, Jr.
IPC分类号： B41J7/50 , G05B19/23 , B41J23/04
CPC分类号： B41J7/50 , G05B19/232 , G05B2219/34236 , G05B2219/42182
摘要： There is disclosed a typewriter using a single element print head wherein the tilt and rotate positions for character selection are obtained by servo systems driving tilt and rotate shafts. The system utilizes a digital multiplexing system whereby common elements in the servo channels are time shared. One common element is a binary arithmetic unit which compares binarily represented actual and desired position values of the shafts to fetch from a memory desired velocity information. The fetched velocity information in binary form is compared with the binarily represented actual velocity of the shafts to generate signals for energizing the servo motors which drive the shafts.
摘要翻译：公开了一种使用单元件打印头的打字机，其中通过驱动倾斜和旋转轴的伺服系统获得用于字符选择的倾斜和旋转位置。该系统利用数字多路复用系统，由此伺服通道中的共同元件是时间共享的。一个常见的元件是二进制运算单元，其将二进制表示的实际和期望的位置值与存储器所需的速度信息进行比较。将二进制形式的获取的速度信息与两轴的实际速度进行比较，以产生用于激励驱动轴的伺服电动机的信号。

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