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21. 发明专利

DE69837722T2 未知
公开(公告)号：DE69837722T2
公开(公告)日：2008-01-10
申请号：DE69837722
申请日：1998-12-08
申请人： QUALCOMM INC
发明人： YOUNIS SAED G , BAZARJANI SEYFOLLAH S , CICCARELLI STEVEN C
IPC分类号： H03M1/18 , H04B1/10 , H03M3/02 , H04B1/16
摘要： A programmable dynamic range receiver which provides the requisite level of performance at reduced power consumption. The SIGMA DELTA ADC within the receiver is designed with one or more loops. Each loop provides a predetermined dynamic range performance. The loops can be enabled or disabled based on the required dynamic range and a set of dynamic range thresholds. The SIGMA DELTA ADC is also designed with adjustable bias current. The dynamic range of the SIGMA DELTA ADC varies approximately proportional to the bias current. By adjusting the bias current, the required dynamic range can be provided by the SIGMA DELTA ADC with minimal power consumption. A reference voltage of the SIGMA DELTA ADC can be descreased when high dynamic range is not required, thereby allowing for less bias current in the SIGMA DELTA ADC and supporting circuitry. The dynamic range of the SIGMA DELTA ADC is a also function of the oversampling ratio which is proportional to the sampling frequency. High dynamic range requires a high oversampling ratio. When high dynamic range is not required, the sampling frequency can be lowered.

22. 发明专利

BR0315830A 未知
公开(公告)号：BR0315830A
公开(公告)日：2005-09-13
申请号：BR0315830
申请日：2003-10-30
申请人： QUALCOMM INC
发明人： CICCARELLI STEVEN C
IPC分类号： H04B1/10 , H04B1/707 , H03G3/20
摘要： Disclosed is a novel and improved dynamically programmable linear receiver which provides the required level of system performance with reduced power consumption. In one embodiment, disclosed is a programmable receiver coupled to a jammer detector for detecting the presence of jamming in an RF signal, the jammer detector coupled to a state machine, and the state machine having means for controlling the receiver based on the results of the jammer detector detecting the presence of jamming in the RF signal. The disclosed receiver is capable of detecting the presence of jammers, with a means to adjust the bias current downward if no jammers are present, which improves the receiver's standby time and prolongs battery life.

23. 发明专利

CA2474350A1 AN AMPS RECEIVER SYSTEM USING A ZERO-IF ARCHITECTURE 未知
公开(公告)号：CA2474350A1
公开(公告)日：2004-06-10
申请号：CA2474350
申请日：2003-01-24
申请人： QUALCOMM INC
发明人： CICCARELLI STEVEN C , RAGHUPATHY ARUN
IPC分类号： H03G3/30 , H04B1/30 , H04Q7/20 , H04B7/26
摘要： An AMPS receiver system utilizing a ZIF architecture and processing received forward link signals in the digital domain. The AMPS receiver system include s an antenna (105), a direct converter (110), high dynamic A/D converters (120 , 130), low pass filters (140, 150), a phase shifter (160), a digital FM demodulator (180), an accumulator (185) and a controller (190). The direct converter (110) further includes a low noise amplifier (112), a splitter (113), mixers (114, 116) and low pass filters (118, 119). The controller (19 0) adjusts the gains of the low noise amplifier (112) and the digital VGA (170) based on the average power of the signal outputted by the digital VGA (170).

24. 发明专利

AU2003287410A1 DYNAMICALLY PROGRAMMABLE RECEIVER 未知
公开(公告)号：AU2003287410A1
公开(公告)日：2004-06-07
申请号：AU2003287410
申请日：2003-10-30
申请人： QUALCOMM INC
发明人： CICCARELLI STEVEN C
IPC分类号： H04B1/10
摘要： Disclosed is a novel and improved dynamically programmable linear receiver which provides the required level of system performance with reduced power consumption. In one embodiment, disclosed is a programmable receiver coupled to a jammer detector for detecting the presence of jamming in an RF signal, the jammer detector coupled to a state machine, and the state machine having means for controlling the receiver based on the results of the jammer detector detecting the presence of jamming in the RF signal. The disclosed receiver is capable of detecting the presence of jammers, with a means to adjust the bias current downward if no jammers are present, which improves the receiver's standby time and prolongs battery life.

25. 发明专利

AU746148B2 Receiver with sigma-delta analog-to-digital converter 未知
公开(公告)号：AU746148B2
公开(公告)日：2002-04-18
申请号：AU1717899
申请日：1998-12-08
申请人： QUALCOMM INC
发明人： BAZARJANI SEYFOLLAH S , CICCARELLI STEVEN C , YOUNIS SAED G , BUTTERFIELD DANIEL K
IPC分类号： H03M1/66 , H03D3/00 , H03D7/16 , H03M3/02 , H04B1/26 , H04B1/16
摘要： A receiver comprising a sigma-delta analog-to-digital converter ( SIGMA DELTA ADC) can be utilized in one of four configurations, as a subsampling bandpass receiver, a subsampling baseband receiver, a Nyquist sampling bandpass receiver, or a Nyquist sampling baseband receiver. For subsampling SIGMA DELTA receivers, the sampling frequency is less than twice the center frequency of the input signal into the SIGMA DELTA ADC. For Nyquist sampling SIGMA DELTA receivers, the sampling frequency is at least twice the highest frequency of the input signal into the SIGMA DELTA ADC. For baseband SIGMA DELTA receivers, the center frequency of the output signal from the SIGMA DELTA ADC is approximately zero or DC. For bandpass SIGMA DELTA receivers, the center frequency of the output signal from the SIGMA DELTA ADC is greater than zero. The sampling frequency can be selected based on the bandwidth of the input signal to simplify the design of the digital circuits used to process the output samples from the SIGMA DELTA ADC. Furthermore, the center frequency of the input signal can be selected based on the sampling frequency and the bandwidth of the input signal. The SIGMA DELTA ADC within the receiver provides many benefits.

26. 发明专利

NO20002931A 未知
公开(公告)号：NO20002931A
公开(公告)日：2000-07-31
申请号：NO20002931
申请日：2000-06-08
申请人： QUALCOMM INC
发明人： CICCARELLI STEVEN C , YOUNIS SAED G , KAUFMAN RALPH E
IPC分类号： H03F1/02 , H03F1/34 , H03G1/00 , H03G3/18 , H03G3/20 , H04B1/10 , H04B1/16
CPC分类号： H03G3/3068 , H03F1/0261 , H03F1/342 , H03F2200/294 , H03F2200/331 , H03F2200/372 , H03G1/0088 , H04B1/1027 , H04B1/109

27. 发明专利

CA2321582A1 METHOD AND APPARATUS FOR DOWNCONVERTING SIGNALS TRANSMITTED USING A PLURALITY OF MODULATION FORMATS TO A COMMON INTERMEDIATE FREQUENCY RANGE 未知
公开(公告)号：CA2321582A1
公开(公告)日：1999-09-10
申请号：CA2321582
申请日：1999-03-02
申请人： QUALCOMM INC
发明人： YOUNIS SAED G , CICCARELLI STEVEN C
IPC分类号： G01S19/07 , G01S19/11 , G01S19/12 , G01S19/31 , H04B1/26 , H04B1/38 , H04B1/40 , H04B1/62 , H04L27/22
摘要： A receiver (2) that downconverts input signals modulated using first, second, third and fourth modulation formats to a common intermediate frequency range. The first and second modulation formats are transmitted to the receiver in a first frequency range, the third modulation format is transmitted to the receiver in a second frequency range, and the fourth modulation format is transmitted to the recdeiver in a third frequency range. The input signals are provided to first, second and third band selection filters (10, 12, 14) that respectively select first, second and third frequency ranges. A first downconverter (20) is coupled to an output of the first band selection filter, and downconverts signals from the first frequency range to the common intermediate frequency range. A second downconverter (24) is selectively coupled by a switch (16) to either an output of the second band selection filter (12) or an output of the third band selection filter (14), and downconverts signals from either the second frequency range or the third frequency range to the common intermediate frequency range. The second downconverter has an input coupled to a frequency doubling circuit (26). Switching circuitry (28) selectively couples one of either a first oscillating signal (30) from a voltage controlled oscillator (VCO) (34) having a VCO frequency range or a second oscillating signal (32) at a second frequency that is outside the VCO frequency range to an input of the first downconverter (20) and an input of the frequency doubling circuit (26).

28. 发明公开

EP1884107A4 METHOD AND APPARATUS FOR RECEIVING DATA AND PAGING FROM MULTIPLE WIRELESS COMMUNICATION SYSTEMS 有权
标题翻译：方法和装置用于接收数据和寻呼多个无线通信系统
公开(公告)号：EP1884107A4
公开(公告)日：2012-04-25
申请号：EP06759631
申请日：2006-05-12
申请人： QUALCOMM INC
发明人： NGAI FRANCIS MING-MENG , TU KUANG-HSUAN , GLAZKO SERGUEI A , CICCARELLI STEVEN C
IPC分类号： H04M1/00 , H04W68/02 , H04W88/06
CPC分类号： H04W88/06 , H04W52/0245 , H04W68/00 , H04W68/025 , Y02D70/00 , Y02D70/1222 , Y02D70/1242
摘要： Techniques for operating two receivers to receive data and paging from two systems are described. A primary receiver is associated with better performance than a secondary receiver under poor RF conditions. The two receivers may be operated in either a hybrid mode in which the primary receiver is used to receive paging or a simultaneous mode in which the second receiver is used to receive paging. One of the modes may be selected for use based on RF conditions, received power, demodulation metrics, and/or other criteria. In one design, a mode is selected based on the received power and one or more thresholds. In another design, the hybrid mode is selected for poor RF conditions and, for good RF conditions, the hybrid or simultaneous mode is selected based on received power.

29. 发明专利

AT514234T 未知
公开(公告)号：AT514234T
公开(公告)日：2011-07-15
申请号：AT09175722
申请日：2007-05-11
申请人： QUALCOMM INC
发明人： CICCARELLI STEVEN C , BANISTER BRIAN CLARKE , GEORGE BRIAN , LAU SOON-SENG , GUDEM PRASAD , RAGHUPATHY ARUN
IPC分类号： H04B1/10
摘要： Techniques for controlling operation of control loops in a receiver are described. The operation of at least one control loop is modified in conjunction with a change in operating state, which may correspond to a change in linearity state, gain state, operating frequency, antenna configuration, etc. A change in linearity state may occur when jammers are detected and may cause bias current of analog circuit blocks to be adjusted. The at least one control loop to be modified may include a DC loop, an AGC loop, etc. The operation of a control loop may be modified by disabling the control loop or changing its time constant prior to changing operating state, waiting a predetermined amount of time to allow the receiver to settle, and enabling the control loop or restoring its time constant after waiting the predetermined amount of time.

30. 发明专利

DE60333596D1 AMPS-EMPFÄNGERSYSTEM MIT EINER NULL-ZF-ARCHITEKTUR 未知
公开(公告)号：DE60333596D1
公开(公告)日：2010-09-09
申请号：DE60333596
申请日：2003-01-24
申请人： QUALCOMM INC
发明人： CICCARELLI STEVEN C , RAGHUPATHY ARUN
IPC分类号： H04B1/30 , H03G3/30

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