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    • 1. 发明申请
    • Dockable wireless remote control
    • 可移动无线遥控器
    • US20090212939A1
    • 2009-08-27
    • US12378645
    • 2009-02-17
    • Robert C. Richmond
    • Robert C. Richmond
    • G08C19/16G08B1/08
    • G08C17/02
    • Improvements in a portable hand-held radio frequency wireless remote control are disclosed. The dockable wireless remote control satisfies the need for a low cost compact portable remote control and can advantageously perform additional functions not performed by previous portable wireless remote control units. It can be carried by the user and used like a conventional remote control. It also enables software control of remote devices when connected (docked) to a computer by way of a direct electrical I/O connection. The proposed remote control provides a means to expand the capabilities of portable compact radio frequency wireless remote controls when needed for advanced control functions without significantly compromising their small size or low cost.
    • 公开了便携式手持式射频无线遥控器的改进。 可停靠无线遥控器满足低成本紧凑型便携式遥控器的需要,并且可以有利地执行不由先前的便携式无线遥控单元执行的附加功能。 它可以由用户携带并像常规遥控器一样使用。 当通过直接电气I / O连接连接(对接)到计算机时,它还可以对远程设备进行软件控制。 所提出的遥控器提供了在需要高级控制功能的情况下扩展便携式小型射频无线遥控器的能力的手段,而不会显着地损害其小尺寸或低成本。
    • 2. 发明授权
    • Bufered intelligent digital tape controller with onboard ECC and
featuring global control variables
    • 具有板载ECC的智能数字磁带控制器,具有全局控制变量
    • US5581458A
    • 1996-12-03
    • US441604
    • 1995-05-15
    • Robert C. Richmond
    • Robert C. Richmond
    • G06F3/06G11B20/12G11B20/18G06F17/30
    • G06F3/0601G11B20/1833G06F2003/0698G11B20/1211G11B2220/913
    • A buffered computer data storage tape controller having a microprocessor, a buffer memory, a host interface, an error correction circuit, and a tape drive interface. A host interface control program executed by the microprocessor controls the host interface for transferring computer data between the buffer memory and a host computer, and for receiving commands from the host computer. An error correction circuit control program executed by the microprocessor controls the error correction circuit for generating parity information for computer data stored in the buffer memory and to be written to tape, and for providing error correction for computer data storage read from tape and stored in the buffer memory for transfer to the host computer. A tape interface control program executed by the microprocessor controls the tape drive interface for transferring computer data between the buffer memory and a tape drive. The control programs are configured to suspend execution at predetermined suspend points and to continue execution at return points associated with said suspend points, and are executed sequentially in a concurrent manner by a scheduler program so that execution of the next control program in sequence continues when an executing program suspends. Interrupt routines executed pursuant to interrupts are provided for accomplishing tasks that have high priority.
    • 一种具有微处理器,缓冲存储器,主机接口,纠错电路和磁带驱动器接口的缓冲计算机数据存储磁带控制器。 由微处理器执行的主机接口控制程序控制主机接口,用于在缓冲存储器和主计算机之间传送计算机数据,并用于从主计算机接收命令。 由微处理器执行的纠错电路控制程序控制误差校正电路,用于产生存储在缓冲存储器中的计算机数据的奇偶校验信息并写入磁带,并为从磁带读取并存储在磁带中的计算机数据存储提供纠错 用于传输到主机的缓冲存储器。 由微处理器执行的磁带接口控制程序控制磁带驱动器接口,用于在缓冲存储器和磁带驱动器之间传送计算机数据。 控制程序被配置为在预定的挂起点处暂停执行并且在与所述挂起点相关联的返回点处继续执行,并且由调度器程序以并发方式顺序地执行,使得当下一个控制程序的执行在 执行程序暂停。 提供了中断执行的中断程序,用于完成高优先级的任务。
    • 3. 发明授权
    • Method for self-cleaning dat drive tape heads
    • 数据驱动磁带头自清洁方法
    • US5381292A
    • 1995-01-10
    • US90972
    • 1993-07-13
    • Robert C. Richmond
    • Robert C. Richmond
    • G11B5/41G11B15/02G11B15/087G11B20/18G11B27/34G11B27/36G11B33/10G11B5/10
    • G11B15/02G11B15/026G11B15/087G11B20/1816G11B27/34G11B27/36G11B33/10G11B5/41G11B2220/90G11B2220/913
    • A method for monitoring the performance of a DAT drive and a method for self-cleaning the tape heads of a DAT drive pursuant to the occurrence of an error that could not be corrected by re-reads or re-writes. The monitoring method includes the steps of (a) reading a tape, (b) determining for each of successive groups of frames respective A track and B track reference error counts representative of the A track and B track C1 error counts in each group of frames, each group having the same number of frames, and (c) providing a warning signal indicative of degraded performance if (i) either the A track reference counts for a predetermined number of consecutive frame groups exceed a predetermined threshold or the B track reference counts for a predetermined number of consecutive frame groups exceed a predetermined threshold, or (ii) if both the A track and B track reference counts for the predetermined number of consecutive frame groups exceed the predetermined threshold. The self-clean procedure includes the steps of moving the tape to the end of the tape at a speed higher than normal, moving the tape to the beginning of the tape at a speed higher than normal, positioning the tape at the location of the error, providing a warning to the user, and resuming the operation that resulted in occurrence of the error. If the error persists, the user is notified of the occurrence of an uncorrectable error.
    • 一种用于监视DAT驱动器的性能的方法以及用于自动清理DAT驱动器的磁头的方法,该方法是由于发生无法通过重新读取或重新写入而被纠正的错误。 监视方法包括以下步骤:(a)读取磁带,(b)确定每个连续的帧组,每个帧的各个A轨道和B轨道参考误差计数表示每组帧中的A轨道和B轨道C1错误计数 每个组具有相同数量的帧,以及(c)提供指示性能下降的警告信号,如果(i)预定数量的连续帧组的A轨道参考计数超过预定阈值或者B轨道参考计数 对于预定数量的连续帧组超过预定阈值,或者(ii)如果预定数量的连续帧组的A轨道和B轨道参考计数都超过预定阈值。 自清洁程序包括以高于正常速度将磁带移动到磁带末端的步骤,以高于正常速度将磁带移动到磁带的开头,将磁带定位在错误位置 向用户提供警告,并恢复导致错误发生的操作。 如果错误仍然存​​在,则会通知用户出现不可纠正的错误。
    • 5. 发明授权
    • System for assembling playback data frames using indexed frame buffer
group according to logical frame numbers in valid subcode or frame
header
    • 使用索引帧缓冲器组根据有效子代码或帧头中的逻辑帧编码重放数据帧的系统
    • US5163136A
    • 1992-11-10
    • US436570
    • 1989-11-13
    • Robert C. Richmond
    • Robert C. Richmond
    • G06F3/06G11B20/10G11B20/12G11B20/18G11B27/28G11B27/30
    • G06F3/0601G11B20/10G11B20/1883G11B27/3063G06F2003/0698G11B2220/90G11B2220/913
    • Apparatus and method for assembling data read from a data storage DAT tape into data groups. A tape data processing circuit responsive to the playback of DAT tape for provides for each frame a serial frame information output including a frame header and frame data, and an associated subcode information output, the subcode information output being available in advance of the associated frame information. A processor responsive to the subcode information checks the validity of the subcode information and determines the destination group memory locations of the associated frame data, such destination group memory locations being group frame locations specified pursuant to valid subcode information or temporary storage areas for frames having invalid subcode information. DMA circuitry transfers the frame data to the destination group memory locations. The processor further checks the error status of the stored frame data, verifies the group memory locations specified by the subcode information for frame data stored pursuant to valid subcode information, relocates frame data stored in temporary storage areas pursuant to frame location information contained in the frame headers under certain conditions, and updates a Bad Track Table to indicate the status of the received frame data stored in the group memory.
    • 将从数据存储DAT磁带读取的数据组装成数据组的装置和方法。 一种磁带数据处理电路,其响应于DAT磁带的重放,为每个帧提供包括帧头和帧数据的串行帧信息输出以及相关的子代码信息输出,子代码信息输出在关联的帧信息之前可用 。 响应于子码信息的处理器检查子码信息的有效性并且确定相关联的帧数据的目的地组存储器位置,这样的目的地组存储器位置是根据有效子码信息指定的组帧位置或者具有无效帧的临时存储区域 子码信息。 DMA电路将帧数据传送到目的地组存储单元。 处理器进一步检查所存储的帧数据的错误状态,验证由根据有效子码信息存储的帧数据的子码信息指定的组存储器位置,根据包含在帧中的帧位置信息重新定位存储在临时存储区域中的帧数据 标题,并更新坏轨迹表以指示存储在组存储器中的接收帧数据的状态。
    • 7. 发明授权
    • Audio tape operation on a DAT data storage drive
    • DAT数据存储驱动器上的磁带操作
    • US5218487A
    • 1993-06-08
    • US954798
    • 1992-09-30
    • Robert C. Richmond
    • Robert C. Richmond
    • G11B15/02G11B15/087G11B27/22G11B27/34G11B27/36
    • G11B15/026G11B15/087G11B27/22G11B27/34G11B27/36G11B2220/90G11B2220/913
    • A computer storage DAT drive which detects the form of a DAT tape and provides an audio signal output in response to an audio DAT tape. The drive rewinds the tape and then plays the tape at a speed that is about 5 to 15 times normal playback speed. During such playback, the tape length is determined and the subcode information is read to determine the format of the tape being played back. If the subcode tape format information reliably indicates the presence of an audio tape, the speed of playback is reduced to normal playback, and audio data interface circuitry is enabled for processing the audio data and providing an audio output signal to a front panel audio jack, for example. If the tape is not recognized as an audio tape within the playback of a predetermined length of tape, playback speed is reduced to normal playback speed and reading of the subcode information continues. If the subcode tape format information indicates that the tape is a computer data storage tape, the tape is read in accordance with the appropriate data storage format. Otherwise, the tape is determined to be blank or erased tape, and playback is stopped.A front panel eject pushbutton is utilized to provide basic controls for controlling the play of an audio tape, and front panel LEDs provide drive and cartridge status indications, including the presence of an audio format tape.
    • 计算机存储DAT驱动器,其检测DAT磁带的形式并响应于音频DAT磁带提供音频信号输出。 驱动器倒带磁带,然后以正常播放速度约5至15倍的速度播放磁带。 在这种重放期间,确定磁带长度,并读取子码信息以确定正被回放的磁带的格式。 如果子码带格式信息可靠地指示音频磁带的存在,则将回放速度降低到正常重放,并且音频数据接口电路被启用以处理音频数据并向前面板音频插孔提供音频输出信号, 例如。 如果磁带在预定长度的磁带的重放期间不被识别为音频磁带,则播放速度降低到正常播放速度,并且继续读取子码信息。 如果子代码磁带格式信息指示磁带是计算机数据存储磁带,则根据适当的数据存储格式读取磁带。 否则,磁带被确定为空白或擦除磁带,并且播放停止。 前面板弹出按钮用于提供用于控制音频磁带播放的基本控制,前面板LED提供驱动器和盒状态指示,包括音频格式磁带的存在。
    • 10. 发明授权
    • Raw error monitoring and reporting
    • 原始错误监控和报告
    • US5253126A
    • 1993-10-12
    • US679668
    • 1991-04-03
    • Robert C. Richmond
    • Robert C. Richmond
    • G11B5/41G11B15/02G11B15/087G11B20/18G11B27/34G11B27/36G11B33/10G11B5/09
    • G11B15/02G11B15/026G11B15/087G11B20/1816G11B27/34G11B27/36G11B33/10G11B5/41G11B2220/90G11B2220/913
    • A method for monitoring the performance of a DAT drive and a method for self-cleaning the tape heads of a DAT drive pursuant to the occurrence of an error that could not be corrected by re-reads or re-writes. The monitoring method includes the steps of (a) reading a tape, (b) determining for each of successive groups of frames respective A track and B track reference error counts representative of the A track and B track C1 error counts in each group of frames, each group having the same number of frames, and (c) providing a warning signal indicative of degraded performance if (i) either the A track reference counts for a predetermined number of consecutive frame groups exceed a predetermined threshold or the B track reference counts for a predetermined number of consecutive frame groups exceed a predetermined threshold, or (ii) if both the A track and B track reference counts for the predetermined number of consecutive frame groups exceed the predetermined threshold. The self-clean procedure includes the steps of moving the tape to the end of the tape at a speed higher than normal, moving the tape to the beginning of the tape at a speed higher than normal, positioning the tape at the location of the error, providing a warning to the user, and resuming the operation that resulted in occurrence of the error. If the error persists, the user is notified of the occurrence of an uncorrectable error.
    • 一种用于监视DAT驱动器的性能的方法以及用于自动清理DAT驱动器的磁头的方法,该方法是由于发生无法通过重新读取或重新写入而被纠正的错误。 监视方法包括以下步骤:(a)读取磁带,(b)确定每个连续的帧组,每个帧的各个A轨道和B轨道参考误差计数表示每组帧中的A轨道和B轨道C1错误计数 每个组具有相同数量的帧,以及(c)提供指示性能下降的警告信号,如果(i)预定数量的连续帧组的A轨道参考计数超过预定阈值或者B轨道参考计数 对于预定数量的连续帧组超过预定阈值,或者(ii)如果预定数量的连续帧组的A轨道和B轨道参考计数都超过预定阈值。 自清洁程序包括以高于正常速度将磁带移动到磁带末端的步骤,以高于正常速度将磁带移动到磁带的开头,将磁带定位在错误位置 向用户提供警告,并恢复导致错误发生的操作。 如果错误仍然存​​在,则会通知用户出现不可纠正的错误。