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91. 发明申请

US20070008198A1 METHOD AND SYSTEM FOR ADJUSTABLE SAMPLE RATE CONVERSION 失效
标题翻译：用于可调整样本速率转换的方法和系统
公开(公告)号：US20070008198A1
公开(公告)日：2007-01-11
申请号：US11176417
申请日：2005-07-07
申请人： Henrik Jensen
发明人： Henrik Jensen
IPC分类号： H03M1/06
CPC分类号： H03H17/028 , H04L7/0029
摘要： Described herein is a method and system for sampling rate conversion. A clamped cubic spline interpolator (CCSI) may be utilized to interpolate or decimate a source signal to provide samples at times based on a sink rate. The source clock and sink clock may be driven by independent oscillators, and may therefore drift independently. A rate tracking algorithm may monitor the relative drift and adjust the conversion of the source signal to track the sink rate.
摘要翻译：这里描述了用于采样率转换的方法和系统。可以使用钳位三次样条内插器（CCSI）来内插或抽取源信号，以便基于下降速率的时间提供采样。源时钟和宿时钟可以由独立的振荡器驱动，因此可以独立地漂移。速率跟踪算法可以监视相对漂移并调整源信号的转换以跟踪汇率。

92. 发明申请

US20060133532A1 Hardware efficient FSK demodulator 失效
标题翻译：硬件高效的FSK解调器
公开(公告)号：US20060133532A1
公开(公告)日：2006-06-22
申请号：US11015162
申请日：2004-12-17
申请人： Henrik Jensen , Paul Lettieri
发明人： Henrik Jensen , Paul Lettieri
IPC分类号： H04L27/18 , H04L27/20 , H04L27/22
CPC分类号： H04L27/368
摘要： A radio frequency (RF) transmitter includes a digital radio processor and a baseband processor. A complex analog-to-digital converter (ADC) within the radio processor provides an analog interface to the baseband processor to receive an analog complex modulated baseband signal and convert the analog complex modulated baseband signal to a digital complex modulated baseband signal. A demodulator within the radio processor demodulates the digital complex modulated baseband signal to recreate the original transmit digital data as a demodulated digital signal. The demodulated digital signal is processed by a digital processor in the radio processor to mitigate the effects of various imperfections in the radio processor circuitry.
摘要翻译：射频（RF）发射机包括数字无线电处理器和基带处理器。无线电处理器内的复数模数转换器（ADC）为基带处理器提供模拟接口，以接收模拟复调制基带信号，并将模拟复调制基带信号转换为数字复调制基带信号。无线电处理器内的解调器解调数字复调制基带信号，以重构原始发射数字数据作为解调数字信号。解调的数字信号由无线电处理器中的数字处理器处理以减轻无线电处理器电路中各种缺陷的影响。

93. 发明申请

US20060109155A1 Technique for improving modulation performance of translational loop RF transmitters 有权
公开(公告)号：US20060109155A1
公开(公告)日：2006-05-25
申请号：US11324362
申请日：2006-01-03
申请人： Henrik Jensen
发明人： Henrik Jensen
IPC分类号： H03M1/66
CPC分类号： H04L27/368
摘要： A transmit signal generated by the baseband processor in a translational loop type RF transmitter is “pre-distorted” so as to counter act magnitude distortion and group delay variation imposed by a narrow PLL signal filter. The pre-distortion occurs in two steps: a magnitude equalizer in the baseband processor pre-distorts the amplitude of the transmit signal according to the inverse of the PLL signal filter magnitude response, and a group delay equalizer linearizes the phase response of the entire transmitter chain, i.e., pre-distorts the transmit signal such that the combined phase response of magnitude equalizer, group delay equalizer, and PLL signal filter is linear. With such pre-distortion, a loop filter is provided for with component values that define a relatively small bandwidth for the loop filter to filter spurious tones that result from an IF reference feedthrough to a voltage controlled oscillator of the translational loop.

94. 发明申请

US20060062325A1 Digital algorithm for on-line ACPR optimization in polar RF transmitters 失效
标题翻译：极地射频发射机在线ACPR优化的数字算法
公开(公告)号：US20060062325A1
公开(公告)日：2006-03-23
申请号：US10944551
申请日：2004-09-17
申请人： Henrik Jensen
发明人： Henrik Jensen
IPC分类号： H04L25/49 , H04L27/12 , H04L27/20
CPC分类号： H04L27/361 , H03C5/00 , H03F1/3252 , H04L27/2078 , H04L27/368
摘要： An RF transmitter includes a digital processor that includes a time shift signal determination block that produces a time shift signal based upon a bleed over power level in an adjacent channel resulting from downstream phase and magnitude mismatch of a primary signal. In one embodiment, the time shift signal determination block includes logic and circuitry for determining a power ratio for a primary signal between a bleed over power level in an adjacent channel and the primary channel. The time shift signal determination block produces the time shift signal to a time shift block that is operably coupled to receive one of an envelope magnitude component and a phase component from a digital signal generation block, wherein the time shift block generates a time shift in at least one of the envelope signal path and the phase signal path based upon the time shift signal.
摘要翻译： RF发射机包括数字处理器，该数字处理器包括时移信号确定块，该时移信号确定块基于由主信号的下游相位和幅度失配导致的相邻信道中的功率电平渗漏而产生时移信号。在一个实施例中，时移信号确定块包括逻辑和电路，用于确定相邻信道中的渗出功率电平与主信道之间的主信号的功率比。时移信号确定块产生时移信号到时移模块，该时移块可操作地耦合以从数字信号产生块接收包络幅度分量和相位分量中的一个，其中该时移块产生在基于时移信号的包络信号路径和相位信号路径中的至少一个。

95. 发明申请

US20060029171A1 Radio receiver and/or transmitter including a programmable equalizer 失效
标题翻译：包括可编程均衡器的无线电接收器和/或发射器
公开(公告)号：US20060029171A1
公开(公告)日：2006-02-09
申请号：US10911934
申请日：2004-08-05
申请人： Henrik Jensen
发明人： Henrik Jensen
IPC分类号： H04B1/10
CPC分类号： H04L27/18 , H04L25/03133 , H04L25/03343 , H04L2025/03394 , H04L2025/03401
摘要： A radio receiver includes a low noise amplifier, a down conversion module, an analog to digital converter, and a digital demodulator. The low noise amplifier is operably coupled to amplify inbound radio frequency (RF) signals to produce amplified inbound RF signals. The down conversion module is operably coupled to convert the amplified inbound RF signals into low intermediate frequency (IF) signals. The analog to digital converter is operably coupled to convert the low IF signals into digital low IF signals. The digital demodulator is operably coupled to convert the digital low IF signals into inbound digital symbols and includes a baseband conversion module, a filtering module, a programmable equalizer, a CORDIC module, and a demodulation module. The baseband conversion module is operably coupled to convert the digital low IF signals into digital baseband signals. The filtering module is operably coupled to filter the digital baseband signals to produce filtered digital baseband signals. The programmable equalizer is operably coupled to equalize phase and frequency response of the filtered digital baseband signals such that the phase and frequency response of the filtered digital baseband signals approximates phase and frequency response of a square root raised cosine filter to produce adjusted digital baseband signals. The CORDIC module is operably coupled to produce phase and magnitude information from the adjusted digital baseband signals. The demodulation module is operably coupled to produce the inbound digital symbols from the phase and magnitude information.
摘要翻译：无线电接收机包括低噪声放大器，下变频模块，模数转换器和数字解调器。低噪声放大器可操作地耦合以放大入站射频（RF）信号以产生放大的入站RF信号。下变频模块可操作地耦合以将放大的入站RF信号转换成低中频（IF）信号。模数转换器可操作地耦合以将低IF信号转换为数字低IF信号。数字解调器可操作地耦合以将数字低IF信号转换成入站数字符号，并且包括基带转换模块，滤波模块，可编程均衡器，CORDIC模块和解调模块。基带转换模块可操作地耦合以将数字低IF信号转换成数字基带信号。滤波模块可操作地耦合以对数字基带信号进行滤波以产生经滤波的数字基带信号。可编程均衡器可操作地耦合以均衡滤波的数字基带信号的相位和频率响应，使得滤波的数字基带信号的相位和频率响应近似于平方根升余弦滤波器的相位和频率响应，以产生经调整的数字基带信号。 CORDIC模块可操作地耦合以从调整的数字基带信号产生相位和幅度信息。解调模块可操作地耦合以从相位和幅度信息产生入站数字符号。

96. 发明申请

US20050220219A1 Digital Modulator for a GSM/GPRS/EDGE wireless polar RF transmitter 失效
标题翻译：用于GSM / GPRS / EDGE无线极性射频发射机的数字调制器
公开(公告)号：US20050220219A1
公开(公告)日：2005-10-06
申请号：US10944552
申请日：2004-09-17
申请人： Henrik Jensen
发明人： Henrik Jensen
IPC分类号： H04L27/12 , H04L27/20
CPC分类号： H04L27/2003 , H04L27/2017
摘要： A digital modulator in a radio transmitter includes circuitry for switching between Gaussian Minimum Shift Keying (GMSK) and Phase-Shift Keying (PSK) while maintaining spectral mask requirements. The digital modulator of the present invention includes both GMSK and PSK symbol mappers that produce PSK in-phase and quadrature symbols and GMSK symbols, respectively, to a pulse shaping block. Based on opposite phases of a modulation control signal, the symbol mappers produce either modulated data or a steam of logic zeros to the pulse shaping block. The pulse shaping block filters the received data and multiplexes the data so that each modulated data stream receives non-zero data during a guard time to avoid abrupt changes in the modulated signal that would violate the spectral mask requirements.
摘要翻译：无线电发射机中的数字调制器包括用于在保持频谱掩模要求的同时在高斯最小移频键控（GMSK）和相移键控（PSK）之间切换的电路。本发明的数字调制器包括分别产生PSK同相和正交符号和GMSK符号的GMSK和PSK符号映射器到脉冲整形块。基于调制控制信号的相反相位，符号映射器产生调制数据或逻辑零的蒸汽到脉冲整形块。脉冲整形块对接收到的数据进行滤波并复用数据，使得每个调制数据流在保护时间期间接收非零数据，以避免将会违反频谱掩模要求的调制信号的突然变化。

97. 发明申请

US20050153670A1 Translational loop transmitter architecture employing channel power ratio measurements for modulation accuracy calibration 失效
公开(公告)号：US20050153670A1
公开(公告)日：2005-07-14
申请号：US11078148
申请日：2005-03-11
申请人： Hong Shi , Henrik Jensen
发明人： Hong Shi , Henrik Jensen
IPC分类号： H04B1/04 , H03C1/62 , H04B17/00
CPC分类号： H04B1/0475
摘要： A Radio Frequency RF transmitter includes a translational loop architecture that supports non-constant envelope modulation types and includes by adjusting the envelope of the translational loop at the translational loop output. The RF transmitter includes an Intermediate Frequency (IF) modulator, a translational loop, an envelope time delay adjust block, an envelope adjust block, and a time delay calibration block. The IF modulator receives a modulated baseband signal and produces a modulated IF signal having a non-constant envelope. The translational loop receives the modulated IF signal and produces a modulated RF signal having a constant envelope. The envelope time delay adjust block receives an envelope signal corresponding to the original modulated signal and produces a time delayed envelope signal based upon a time delay control signal. The envelope adjust block adjusts the modulated RF signal based upon the time delayed envelope signal to produce an envelope adjusted modulated RF signal. Finally, the time delay calibration block receives the envelope adjusted modulated RF signal and produces the time delay control signal.

98. 发明申请

US20050070231A1 Technique for improving modulation performance of translational loop RF transmitters 失效
标题翻译：提高平移环路射频发射机调制性能的技术
公开(公告)号：US20050070231A1
公开(公告)日：2005-03-31
申请号：US10676221
申请日：2003-09-30
申请人： Henrik Jensen
发明人： Henrik Jensen
IPC分类号： H04L27/36 , H04B1/38 , H03M1/66
CPC分类号： H04L27/368
摘要： A transmit signal generated by the baseband processor in a translational loop type RF transmitter is “pre-distorted” so as to counter act magnitude distortion and group delay variation imposed by a narrow PLL signal filter. The pre-distortion occurs in two steps: a magnitude equalizer in the baseband processor pre-distorts the amplitude of the transmit signal according to the inverse of the PLL signal filter magnitude response, and a group delay equalizer linearizes the phase response of the entire transmitter chain, i.e., pre-distorts the transmit signal such that the combined phase response of magnitude equalizer, group delay equalizer, and PLL signal filter is linear. With such pre-distortion, a loop filter is provided for with component values that define a relatively small bandwidth for the loop filter to filter spurious tones that result from an IF reference feedthrough to a voltage controlled oscillator of the translational loop.
摘要翻译：由平移环型RF发射机中的基带处理器产生的发送信号被“预失真”，以抵消由窄PLL信号滤波器施加的动作幅度失真和组延迟变化。预失真发生在两个步骤中：基带处理器中的幅度均衡器根据PLL信号滤波器幅度响应的倒数来预失真发射信号的幅度，并且组延迟均衡器将整个发射机的相位响应线性化链，即，预发射发射信号，使得幅度均衡器，组延迟均衡器和PLL信号滤波器的组合相位响应是线性的。通过这种预失真，提供了一个环路滤波器，用于为分频值定义一个相对较小的带宽，以将由IF参考馈通产生的杂散音调滤波到平移回路的压控振荡器。

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