公开(公告)号：US5301365A

公开(公告)日：1994-04-05

申请号：US961959

申请日：1992-10-16

申请人： David M. Hess ,  John J. Janssen ,  Michael W. Houghton

发明人： David M. Hess ,  John J. Janssen ,  Michael W. Houghton

IPC分类号： G06F1/08 ,  H04B1/40 ,  H03B1/00 ,  H03L7/02

CPC分类号： G06F1/08

摘要： The bidirectional clocking apparatus provides automatic sensing of whether a reference clock being generated by another circuit needs to be divided down to a lower frequency. If this is true, the clock is divided down to a lower frequency and sent out to other circuits requiring the lower frequency clock. If the lower frequency clock is already generated from another circuit, the apparatus accepts this clock for use by other circuits. Only one terminal is required for either sourcing or accepting this lower frequency clock signal.

摘要翻译： 双向计时装置提供自动感测由另一个电路产生的参考时钟是否需要被分成较低的频率。 如果是这样，则将时钟分频到较低的频率，并发送到需要较低频率时钟的其他电路。 如果低频时钟已经从另一个电路产生，则该设备接受该时钟供其他电路使用。 要求采购或接受此低频时钟信号，只需要一个端子。

公开(公告)号：US06690945B1

公开(公告)日：2004-02-10

申请号：US09619932

申请日：2000-07-20

申请人： John P. Oliver ,  James C. Baker ,  John J. Janssen

发明人： John P. Oliver ,  James C. Baker ,  John J. Janssen

IPC分类号： H04Q732

CPC分类号： H04L25/03834

摘要： The pulse-shaping look-up table with transient suppression (530) avoids hard turn-on and turn-off transients by modifying word segments of initial and final digital words during transmission of a digital data sequence. A controller (570) sends a mode signal and a digital data sequence to the pulse-shaping look-up table with transient suppression (530). A mode buffer and command block (560) uses the mode signal to control the creation of initial and final digital words created by a data buffer and control block (550) from the digital data sequence. The digital words are used by a look-up table (540) to create a sampled digital output waveform sequence. The pulse-shaping look-up table with transient suppression (530) provides an accurate output waveform sequence with reduced spectral emissions even during start-up and shut-down of digital data transmissions.

摘要翻译： 具有瞬态抑制的脉冲整形查找表（530）通过在数字数据序列的传输期间修改初始和最终数字字的字段来避免硬导通和关断瞬变。 控制器（570）将模式信号和数字数据序列发送到具有瞬时抑制的脉冲整形查找表（530）。 模式缓冲器和命令块（560）使用模式信号来控制由数据缓冲器和控制块（550）从数字数据序列创建的初始和最终数字字的创建。 数字字由查找表（540）用于创建采样的数字输出波形序列。 具有瞬态抑制的脉冲整形查找表（530）提供精确的输出波形序列，即使在数字数据传输的启动和关闭期间也能降低频谱发射。

公开(公告)号：US6144862A

公开(公告)日：2000-11-07

申请号：US124208

申请日：1998-07-28

申请人： John P. Oliver ,  James C. Baker ,  John J. Janssen

发明人： John P. Oliver ,  James C. Baker ,  John J. Janssen

IPC分类号： H04L25/03 ,  H04Q7/32

CPC分类号： H04L25/03834

摘要： The pulse-shaping look-up table with transient suppression (530) avoids hard turn-on and turn-off transients by modifying word segments of initial and final digital words during transmission of a digital data sequence. A controller (570) sends a mode signal and a digital data sequence to the pulse-shaping look-up table with transient suppression (530). A mode buffer and command block (560) uses the mode signal to control the creation of initial and final digital words created by a data buffer and control block (550) from the digital data sequence. The digital words are used by a look-up table (540) to create a sampled digital output waveform sequence. The pulse-shaping look-up table with transient suppression (530) provides an accurate output waveform sequence with reduced spectral emissions even during start-up and shut-down of digital data transmissions.

摘要翻译： 具有瞬态抑制的脉冲整形查找表（530）通过在数字数据序列的传输期间修改初始和最终数字字的字段来避免硬导通和关断瞬变。 控制器（570）将模式信号和数字数据序列发送到具有瞬时抑制的脉冲整形查找表（530）。 模式缓冲器和命令块（560）使用模式信号来控制由数据缓冲器和控制块（550）从数字数据序列创建的初始和最终数字字的创建。 数字字由查找表（540）用于创建采样的数字输出波形序列。 具有瞬态抑制的脉冲整形查找表（530）提供精确的输出波形序列，即使在数字数据传输的启动和关闭期间也能降低频谱发射。

公开(公告)号：US06408340B1

公开(公告)日：2002-06-18

申请号：US09633586

申请日：2000-08-07

申请人： John J. Janssen ,  William T. Waldie ,  Steven J. Olsen ,  William Kolofa

发明人： John J. Janssen ,  William T. Waldie ,  Steven J. Olsen ,  William Kolofa

IPC分类号： G06F1516

CPC分类号： H03D3/007 ,  G11B20/10

摘要： A method of transferring data between a first electrical component (16) and a second electrical component (18), which are both coupled to a common oscillator (62) that oscillates at a first frequency, the first electrical component (16) generating a first bit stream having a second frequency that is a fraction of the first frequency and having a first number of bits, generating an indicator signal having a third frequency that is a fraction of the first frequency and that is indicative of a type of data represented by the first bit stream, and coupling the first bit stream and the indicator signal to the second electrical component. The second electrical component (18) sampling the first bit stream and the indicator signal at a fourth frequency that is substantially identical to the second frequency, thereby recovering the first bit stream generated by the first electrical component (16) and determining the type of data contained in the first bit stream.

摘要翻译： 一种在第一电气部件（16）和第二电气部件（18）之间传送数据的方法，所述第一电气部件（16）和第二电气部件（18）均耦合到以第一频率振荡的公共振荡器（62），所述第一电气部件（16） 比特流具有第二频率，其是第一频率的一部分并且具有第一数量的比特，产生具有第三频率的指示符信号，该第三频率是第一频率的一部分，并且指示由所述第一频率表示的数据类型 第一比特流，并将第一比特流和指示符信号耦合到第二电子部件。 第二电气部件（18）以与第二频率基本相同的第四频率对第一比特流和指示符信号进行采样，由此恢复由第一电气部件（16）生成的第一比特流并确定数据的类型 包含在第一位流中。

公开(公告)号：US06393079B1

公开(公告)日：2002-05-21

申请号：US09124200

申请日：1998-07-28

申请人： John J. Janssen ,  James C. Baker ,  John P. Oliver

发明人： John J. Janssen ,  James C. Baker ,  John P. Oliver

IPC分类号： H04B110

CPC分类号： H04B1/44 ,  H04B1/10

摘要： A transient-suppressing mode switch (100) uses a state machine (120) in conjunction with a soft switch (114) to control a first mode signal sent from a first mode signal source (112) to a first soft switch input and a second mode signal from a second mode signal source (130) to a second soft switch input. When switching from a first mode to a second mode, the state machine delays the transition of the second mode signal from a constant zero value to a non-zero value until after the amplitude of the first mode signal at the first soft switch input has decayed to a sufficiently small value in order to reduce transients caused by switching.

摘要翻译： 瞬态抑制模式开关（100）使用与软开关（114）结合的状态机（120）来控制从第一模式信号源（112）发送到第一软开关输入的第一模式信号和第二软开关 模式信号从第二模式信号源（130）传输到第二软开关输入。 当从第一模式切换到第二模式时，状态机将第二模式信号从恒定零值的转变延迟到非零值，直到在第一软开关输入处的第一模式信号的幅度衰减 达到足够小的值，以减少由切换引起的瞬变。

公开(公告)号：US5589796A

公开(公告)日：1996-12-31

申请号：US332968

申请日：1994-11-01

申请人： William P. Alberth, Jr. ,  John J. Janssen ,  Armin Klomsdorf

发明人： William P. Alberth, Jr. ,  John J. Janssen ,  Armin Klomsdorf

IPC分类号： H03G3/30 ,  H03F1/02 ,  H03F3/189 ,  H03F3/24 ,  H03G3/00 ,  H04B1/04

CPC分类号： H03G3/007 ,  H03F1/0233

摘要： A transmitter (107) includes amplifying circuitry (203) and control circuitry (215, 217, 219) for biasing the amplifying circuitry (203) so that it operates closer to saturation with increased efficiency. The gate voltage signal (213), which provides a gate bias, is coupled to the amplifying circuitry (203) and is dynamically varied by the processor circuitry (219) in response to the value of the amplifier control voltage (211) coupled to the amplifying circuitry (203). The amplifier control voltage (211), which has a value for maintaining the output power of the amplifying circuitry (203) at a constant, is produced by the integrating circuitry (217) in response to a comparison of the detected power output signal (216) produced by the detecting circuitry (215) and the power output control signal (218) produced by the processor circuitry (219). Efficiency is realized by dynamically varying the gate voltage signal (213) to its largest magnitude so that the amplifying circuitry (203) may operate as close to saturation as possible while still maintaining a constant output power.

摘要翻译： 发射器（107）包括用于偏置放大电路（203）的放大电路（203）和控制电路（215,217,219），使得其以更高的效率工作更接近饱和。 提供栅极偏置的栅极电压信号（213）被耦合到放大电路（203），并且响应于耦合到放大器控制电压（211）的值而被处理器电路（219）动态地改变 放大电路（203）。 响应于检测到的功率输出信号（216）的比较，由积分电路（217）产生具有用于将放大电路（203）的输出功率维持在恒定值的放大器控制电压（211） ）由处理器电路（219）产生的检测电路（215）和功率输出控制信号（218）产生。 通过将栅极电压信号（213）动态地变化到其最大幅度来实现效率，使得放大电路（203）可以在仍然保持恒定的输出功率的情况下尽可能地接近饱和而运行。

公开(公告)号：US5519346A

公开(公告)日：1996-05-21

申请号：US263595

申请日：1994-06-22

申请人： Kenneth R. Haddad ,  John J. Janssen

发明人： Kenneth R. Haddad ,  John J. Janssen

IPC分类号： H04B1/16 ,  H03K17/22

CPC分类号： H04W52/0258 ,  H04W52/0261

摘要： Radiotelephones often are powered by batteries (12). When a radiotelephone is bumped, the battery (12) can lose electrical contact with the radiotelephone. When power is interrupted (40), a timer is started (42). When the power is reapplied (44), the timer is sampled (46) and compared against a predetermined period of time. If the power was interrupted for a short time, then the radiotelephone is turned on (50). If the power was interrupted for a long time, then the radiotelephone stays off (48). The timer in the circuit is implemented as an RC circuit (26) starts to discharge. If the voltage level falls below Vref, the radiotelephone will not turn on when the power is reapplied.

摘要翻译： 无线电话机通常由电池供电（12）。 当无线电话机被撞击时，电池（12）可以失去与无线电话机的电接触。 当电源中断（40）时，启动定时器（42）。 当重新施加电源（44）时，定时器被采样（46）并与预定的时间段进行比较。 如果电源在短时间内中断，则无线电话机被打开（50）。 如果电源长时间中断，则无线电话机将停机（48）。 电路中的定时器被实现为RC电路（26）开始放电。 如果电压电平低于Vref，则在重新施加电源时，无线电话机将不会打开。