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公开(公告)号：US5963197A
公开(公告)日：1999-10-05
申请号：US881712
申请日：1997-06-24
CPC分类号： G06F3/03543 , G06F3/0312 , G06F3/03549 , G06F2203/0333
摘要： A computer input device uses a standard mouse design and includes at least one thumb wheel or roller to provide three-dimensional cursor positioning. Left and right rollers, for use by left- and right-handed users, protrude from left and right sides of a standard mouse. The left and right rollers are axially mounted on left and right drive shafts that extend axially through left and right encoder wheels, respectively. Each encoder wheel forms part of a transducer for producing signals indicating movement or rotation of the wheel. These signals can be used for calculating cursor movement or for various other purposes in computer software applications. Alternatively, the rollers are coupled to switches or a single roller protrudes from the top of the mouse.
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公开(公告)号：US5473344A
公开(公告)日：1995-12-05
申请号：US178524
申请日：1994-01-06
CPC分类号： G06F3/03543 , G06F3/0312 , G06F3/03549 , G06F2203/0333
摘要： A computer input device uses a standard mouse design and includes at least one thumb wheel or roller to provide three-dimensional cursor positioning. Left and right rollers, for use by left- and right-handed users, protrude from left and right sides of a standard mouse. The left and right rollers are axially mounted on left and right drive shafts that extend axially through left and right encoder wheels, respectively. Each encoder wheel forms part of a transducer for producing signals indicating movement or rotation of the wheel. These signals can be used for calculating cursor movement or for various other purposes in computer software applications. Alternatively, the rollers are coupled to switches or a single roller protrudes from the top of the mouse.
摘要翻译： 计算机输入设备使用标准鼠标设计并且包括至少一个指轮或滚轮以提供三维光标定位。 左右手使用的左右滚轮从标准鼠标的左侧和右侧突出。 左右滚轮分别轴向安装在左右驱动轴上，左右驱动轴分别轴向延伸通过左右编码器轮。 每个编码器轮形成换能器的一部分，用于产生指示车轮的移动或旋转的信号。 这些信号可用于计算光标移动或用于计算机软件应用中的各种其他目的。 或者，辊子连接到开关或单个辊子从鼠标的顶部突出。
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公开(公告)号：US5136251A
公开(公告)日：1992-08-04
申请号：US648277
申请日：1991-01-31
IPC分类号： G01R27/26
CPC分类号： G01R27/2605
摘要： The capacitance of an unknown capacitor is measured with multimeter instrumentation employing a dual slope analog-to-digital converter. The initial voltage across the capacitor is measured and the capacitor is cyclically charged until the capacitor reaches a predetermined proportion of possible charge. The final voltage is measured. The voltage across the charging resistance is integrated over successive charging cycles to provide a value proportional to the charge delivered to the capacitor and this value is divided by the difference between the initial and final voltages.
摘要翻译： 使用双斜率模数转换器的万用表仪器测量未知电容器的电容。 测量电容器两端的初始电压，电容器循环充电直到电容器达到预定比例的可能电荷。 测量最终电压。 充电电阻两端的电压在连续的充电周期内积分，以提供与传送到电容器的电荷成比例的值，该值除以初始和最终电压之间的差值。
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公开(公告)号：US06307538B1
公开(公告)日：2001-10-23
申请号：US09098967
申请日：1998-06-18
申请人： Glade B. Bacon
发明人： Glade B. Bacon
IPC分类号： G09G508
CPC分类号： G06F3/0383 , H01R13/6581 , H01R13/6658
摘要： An input device capable of being connected to a computing device includes a housing having transducer electronics capable of manipulating an electrical signal to indicate movement of a portion of a user. At least one but fewer than four conductors are connected to the transducer electronics, and are each capable of carrying an electrical signal related to the input device. Each of the conductors is coupled to a connector that is capable of being coupled to the computer.
摘要翻译： 能够连接到计算设备的输入设备包括具有能够操纵电信号以指示用户的一部分的移动的换能器电子设备的壳体。 至少一个但少于四个导体连接到换能器电子器件，并且每个导体都能够承载与输入装置相关的电信号。 每个导体耦合到能够耦合到计算机的连接器。
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5.发明授权System for automatic identification of a computer data entry device interface type using a transistor to sense the voltage generated by the interface and output a matching voltage level 失效用于自动识别计算机数据输入设备接口类型的系统，使用晶体管来感测由接口产生的电压并输出匹配的电压电平
公开(公告)号：US5754890A
公开(公告)日：1998-05-19
申请号：US595345
申请日：1996-02-01
申请人： Todd E. Holmdahl , Glade B. Bacon
发明人： Todd E. Holmdahl , Glade B. Bacon
CPC分类号： G06F3/0383 , Y10T307/445 , Y10T307/74 , Y10T307/937 , Y10T307/977
摘要： A circuit using a single transistor to detect the interface type to Which a combination pointing device is connected. The pointing device may be connected to a PS/2 interface, which generates a voltage greater than or equal to 0 volts, or a serial interface which generates a negative voltage. The transistor is activated when connected to the serial interface, and is inactive when connected to the PS/2 interface. The output of the transistor is sensed by a microcontroller within the pointing device. The microcontroller generates data for transmission to the PS/2 interface if the transistor is not active, and generates data for transmission to the serial interface if the transistor is active. An I/O pin in the microcontroller is used to sense the interface type and can also be used as an output in which the microcontroller generates control signals for use by the pointing device. This multitasking operation reduces the required pin count of the microcontroller, thus reducing cost.
摘要翻译： 使用单个晶体管检测组合指示装置所连接的接口类型的电路。 指示装置可以连接到产生大于或等于0伏特的电压的PS / 2接口或产生负电压的串行接口。 晶体管连接到串行接口时被激活，当连接到PS / 2接口时，晶体管不活动。 晶体管的输出由定点设备内的微控制器感测。 如果晶体管不工作，微控制器产生传输到PS / 2接口的数据，并且如果晶体管有效，则生成用于传输到串行接口的数据。 微控制器中的I / O引脚用于检测接口类型，也可以用作微控制器产生控制信号以供指示设备使用的输出。 这种多任务操作减少了微控制器所需的引脚数，从而降低了成本。
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公开(公告)号：US5379022A
公开(公告)日：1995-01-03
申请号：US57170
申请日：1993-05-03
摘要： A thermistor device includes plural thermistor elements in series, one or more of which is shunted with a varistor so that if such thermistor heats up and drops excessive voltage, the current therethrough is diverted to the varistor until other thermistors in series also heat to a high resistance state. The thermistor and varistor elements are thermally joined so that the various thermistor elements are rapidly brought up to temperature and prevent prolonged voltage drop across a protective varistor.
摘要翻译： 热敏电阻器件包括串联的多个热敏电阻元件，其中一个或多个与变阻器分流，使得如果这种热敏电阻加热并降低过大的电压，则其中的电流被转移到变阻器，直到串联的其它热敏电阻也加热到高 电阻状态。 热敏电阻和压敏电阻元件被热接合，使得各种热敏电阻元件迅速升高到温度并防止保护性变阻器上的延长的电压降。
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7.发明授权Noise-insensitive optoencoding techniques with compensation for device variations 失效噪声不敏感的光电编码技术，具有对器件变化的补偿
公开(公告)号：US5557440A
公开(公告)日：1996-09-17
申请号：US177462
申请日：1994-01-05
申请人： Mark T. Hanson , Glade B. Bacon
发明人： Mark T. Hanson , Glade B. Bacon
CPC分类号： G06F3/03543 , G06F3/0312
摘要： A method of detecting quadrature signals in a computer input device allows a microprocessor in the input device to perform comparator functions, thus eliminating the need for external comparator circuitry. At least one light-emitting element in the input device emits light pulses, and these light pulses are selectively received by a light-detecting element. A notched encoder wheel separates the light-emitting element from the light-detecting element, allowing various amounts of light to be received by the light-detecting element depending on whether a notch separates the two elements. The microprocessor loads a sample of the output from the light-detecting element: a first sample taken at a selected time value and a second sample taken at twice the selected time value. The second sample is used for quadrature calculations used in determining cursor movement on a video display device. The first sample is retrieved by the microprocessor and determined if it is a digital "1" signal. If it is, then the selected time value is decremented by one sampling period.
摘要翻译： 一种在计算机输入设备中检测正交信号的方法允许输入设备中的微处理器执行比较器功能，从而消除对外部比较器电路的需要。 输入装置中的至少一个发光元件发射光脉冲，并且这些光脉冲被光检测元件选择性地接收。 缺口编码轮将发光元件与光检测元件分开，根据切口是否分离两个元件，允许由光检测元件接收各种量的光。 微处理器加载来自光检测元件的输出的样本：以所选择的时间值取得的第一样本和以所选时间值的两倍取得的第二样本。 第二个样本用于在视频显示设备上确定光标移动时使用的正交计算。 第一个样品由微处理器检索，并确定它是否是数字“1”信号。 如果是，则所选择的时间值递减一个采样周期。
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公开(公告)号：US5418450A
公开(公告)日：1995-05-23
申请号：US57521
申请日：1993-05-03
申请人： Glade B. Bacon
发明人： Glade B. Bacon
摘要： A coupling circuit for a multimeter adapted to perform multiple measurements includes a thermistor and constant current sources in series between an instrument input terminal and an instrument circuit adapted to source current for ohms measurements. Varistors shunt the constant current sources and are thermally coupled to the thermistor. An initial inrush of current is controlled by the constant current sources and when the voltage across a constant current source reaches the knee voltage of the paralleled varistor, the varistor shunts the constant current source and provides heat to the thermistor for insuring the latter will transition to its high resistance state. The thermistor then drops a substantial part of the input voltage, effectively disconnecting the low impedance ohms circuit from the input terminals and protecting the constant current source circuitry and varistors from extended application of high voltage.
摘要翻译： 用于执行多次测量的万用表的耦合电路包括串联在仪器输入端子和适于欧姆测量的电流源的仪器电路之间的恒温电流源。 压敏电阻分流恒流源并热耦合到热敏电阻。 电流的初始浪涌由恒定电流源控制，当恒定电流源两端的电压达到并联变阻器的拐点电压时，压敏电阻分流恒流源，并向热敏电阻提供热量，以确保热敏电阻转变为 其高电阻状态。 然后，该热敏电阻降低输入电压的大部分，从而有效地将低阻抗欧姆电路与输入端子断开连接，并保护恒流源电路和压敏电阻免受高电压的延长应用。
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公开(公告)号：US5379176A
公开(公告)日：1995-01-03
申请号：US57698
申请日：1993-05-03
摘要： A protective circuit for the input of a multimeter is provided with series connected thermistors partially shunted by a varistor whereby overload voltage is distributed between the thermistors enabling protection at higher voltage levels. Shunt connected varistors protect primarily against transient overloads and are thermally coupled to the aforementioned thermistors to bring the thermistors more rapidly to their high resistance condition such that damage to the varistors is avoided and continued protection is provided.
摘要翻译： 用于输入万用表的保护电路设置有由压敏电阻部分分流的串联连接的热敏电阻，由此过热电压分布在热敏电阻之间，从而能够在较高电压水平下进行保护。 并联连接的压敏电阻主要防止瞬态过载，并且热耦合到上述热敏电阻，以使热敏电阻更快地到达其高电阻状态，从而避免对压敏电阻的损坏并提供持续的保护。
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公开(公告)号：US5142221A
公开(公告)日：1992-08-25
申请号：US615169
申请日：1990-11-23
CPC分类号： G01R15/09 , G01R15/125
摘要： A digital multimeter having automatic function selection capability includes a signal type detector and an analog-to-digital converter formed as an application specific integrated circuit. The signal type detector has a comparator circuit that compares the analog input signal to be measured with predetermined thresholds and stores the resulting values, which are related to the type of analog input signal, in a memory that is also a part of the signal type detector. A controller executes an automatic function selection program that causes the controller to read the stored values and generate a corresponding function code, which causes an analog-to-digital converter to be configured to perform an appropriate conversion function on the analog input signal. When a change in the type of analog input signal is sensed, the controller aborts the present measurement cycle and proceeds with a next measurement cycle in which the changed analog input signal is measured. The controller also produces a change alert signal to indicate that a change in signal type has occurred.
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