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公开(公告)号：CA2303532C
公开(公告)日：2005-06-07
申请号：CA2303532
申请日：1998-09-25
Applicant: QUALCOMM INC
Inventor： SORENSON JOHN R , AULT JAN C , HUTCHISON JAMES A IV
Abstract: A wireless communication device automatically and seamlessly switches to an alternate, available system when it is unable to complete a call origination attempt, without requiring the user to take any affirmative actions to select the alternate system, the wireless communication device stores a list of preferred communication systems. The mobile station attempts to acquire (302) one of these preferred communication systems upon failure of the reverse link (300). If that is not successful (304), the mobile station attempts to acquire (306) a communication system most likely to provide service. If that is also not sucessful (308), the mobile station re-attempts acquisition of the current communication system. The mobile station also re-attempts (310) acquisition with one of the preferred communication systems after a predetermined idle time.
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公开(公告)号：ES2222502T3
公开(公告)日：2005-02-01
申请号：ES97909848
申请日：1997-09-30
Applicant: QUALCOMM INC
Inventor： HUTCHISON JAMES A IV , WIECK CHRIS P
Abstract: Un método para ajustar la ganancia de un circuito, teniendo el circuito un amplificador de bajo ruido y que recibe una señal que tiene potencia, comprendiendo el método: - medir la potencia de dicha señal; - comparar dicha potencia medida de dicha señal con un primer umbral; - disminuir la ganancia de dicho amplificador de bajo ruido durante un periodo de tiempo determinado si dicha potencia de señal medida es mayor que dicho primer umbral; - volver a medir la potencia de dicha señal; - volver a comparar dicha potencia vuelta a medir de dicha señal con un segundo umbral; - variar dicha ganancia de dicho amplificador de bajo ruido, caracterizado por detectar un cambio en dicha potencia de señal; incrementar dicha ganancia de dicho amplificador de bajo ruido si dicha potencia de dicha señal vuelta a medir es menor que dicho segundo umbral y dicho cambio detectado es menor que una cantidad determinada.
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公开(公告)号：AT264028T
公开(公告)日：2004-04-15
申请号：AT97909848
申请日：1997-09-30
Applicant: QUALCOMM INC
Inventor： HUTCHISON JAMES A IV , WIECK CHRIS P
Abstract: A method for adjusting the gain of a receive circuit, thereby improving a receiver's immunity to interference. The circuit has an LNA which amplifies the received signal (1702). The receive signal power is controlled by enabling or disabling the LNA in response to the measured received signal power (1704). The received power level is periodically compared to a threshold (1704). When the received power level is greater than the threshold, the LNA is disabled (1706). The LNA is re-enabled when the received power level is less than the threshold (1708), and there are no significant intermodulation components detected (1710). The intermodulation components are detected by briefly enabling the LNA and detecting the resultant change in the measured signal power (1710). If the detected change is more than a predetermined amount, then there are significant intermodulation components present, and the LNA is not re-enabled (1706). Otherwise, there are not significant intermodulation components present, and the LNA is re-enabled (1702).
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公开(公告)号：HK1044261A1
公开(公告)日：2002-10-11
申请号：HK02105823
申请日：2002-08-09
Applicant: QUALCOMM INC
Inventor： HUTCHISON JAMES A IV , BESTE DEN STEVEN C , HUANG HANCHI
Abstract: A wireless communication device having an accessory port and a processor to detect when an external accessory is coupled to the accessory port, and then identify the type of external accessory. A data line connects the external accessory to the wireless communication device, the data line being a portion of a pulse code modulation (PCM) port in the accessory port. The processor senses activity on this data line, including a signal transmitted by the external accessory indicative of when the external accessory is coupled to the wireless communication device. The processor further senses identification data associated with the external accessory, with the identification data including an identification code of the external accessory. The processor generates a clock signal, and the external accessory transmits the identification data to the wireless communication device over the data line in response to the clock signal. In this fashion, the processor repeatedly senses the transmitted identification data. An input line in the accessory port carries a voltage indicative of whether the external accessory supplies external power to the wireless communication device. The identification code transmitted by the external accessory is compared to stored codes corresponding to a plurality of external accessories to identify the external accessory coupled to the wireless communication device.
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公开(公告)号：MXPA01007058A
公开(公告)日：2002-04-24
申请号：MXPA01007058
申请日：2000-01-11
Applicant: QUALCOMM INC
Inventor： HUTCHISON JAMES A IV
Abstract: Un dispositivo de comunicacion inalambrico (100) que tiene un puerto de accesorios (136) y un procesador (114) para detectar cuando un accesorio externo (201) esta acoplado al puerto de accesorios, y a continuacion identificar el tipo de accesorio externo. Una linea de datos (208) conecta el accesorio externo al dispositivo de comunicacion inalambrico, siendo la linea de datos una porcion de un puerto de modulacion de codigo de impulso (PCM) en el puerto de accesorios. El procesador detecta la actividad sobre esta linea de datos, incluyendo una senal transmitida por el accesorio externo indicativa de cuando el accesorio externo esta acoplado al dispositivo de comunicacion inalambrico. El procesador detecta ademas datos de identificacion asociados con el accesorio externo, con los datos de identificacion que incluyen un codigo de identificacion del accesorio externo. El procesador genera una senal de reloj, y el accesorio externo transmite los datos de identificacion al dispositivo de comunicacion inalambrico sobre la linea de datos en respuesta a la senal de reloj. De esta forma, el procesador detecta repetidamente los datos de identificacion transmitidos. Una linea de entrada en el puerto de accesorios contiene un voltaje indicativo y el accesorio externo suministra energia externa al dispositivo de comunicacion inalambrico. El codigo de identificacion transmitido por el accesorio externo es comparado con codigos almacenados correspondientes a una pluralidad de accesorios externos para identificar el accesorio externo acoplado al dispositivo de comunicacion inalambrico.
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Patent Agency Ranking
公开(公告)号：AU3984501A
公开(公告)日：2001-09-03
申请号：AU3984501
申请日：2001-02-23
Applicant: QUALCOMM INC
Inventor： SORENSON JOHN R , ACHOUR BAAZIZ , AULT JAN C , BHATIA ASHOK , CHINIGA YUGANDHAR , HUTCHISON JAMES A IV , NEW WEN J , TUNG HENTI , WILLIAMSON PAUL T
Abstract: A system for facilitating the acquisition of a most desirable wireless service for a wireless phone. The system includes a scanning mechanism for periodically scanning for a signal indicative of a wireless service having a coverage area that overlaps one or more coverage areas of other wireless services. A service acquisition mechanism acquires the wireless service or one of the other wireless services based on predetermined selection criteria and the signal. More specifically, the present invention includes a wireless phone having a first mechanism for determining if a detected system, i.e., service is associated with a coverage area that overlaps one or more coverage areas of different systems. A second mechanism compares the different systems to the detected system and selects a preferred system based on the comparison. A third mechanism acquires the preferred system. In the specific embodiment, the wireless phone includes a computer that runs software for implementing the first, second, and third mechanisms.
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公开(公告)号：CA2409816A1
公开(公告)日：2001-08-09
申请号：CA2409816
申请日：2001-02-02
Applicant: QUALCOMM INC
Inventor： SUTANKAYO STEVEN I , HUTCHISON JAMES A IV
Abstract: A circuit for interfacing a modem in a wireless communication device to a Subscriber Interface Module (SIM) includes a modem controller, a Universal Asynchronous Receiver/Transmitter (UART) connected to the modem controller, a programmable clock circuit adapted to generate a SIM clock and a UART clock independently of one another based on a common clock and a control signal provided to the programmable clock circuit, a reset circuit to generate a SIM reset signal, and a power control circuit to control powering on and off the SIM, all on an integrated circuit chip. The circuit also includes a Bus Interface circuit to interface the modem to the SIM using a common data line.
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28.发明专利
公开(公告)号：CA2387938A1
公开(公告)日：2001-04-26
申请号：CA2387938
申请日：2000-10-19
Applicant: QUALCOMM INC
Inventor： HUTCHISON JAMES A IV , SPALL LEE Y
Abstract: A method and apparatus for updating and storing a counter value. In response to each of a plurality of N counter update signals, a binary memory cell is selected (350) from a plurality of binary memory cells and the state of the selected binary memory cell is inverted (360). After the N counter update signals are received (320), a register that is separate from the plurality o f binary memory cells is incremented (340), and the process is then repeated i n response to further counter update signals (320). Each of the plurality of binary memory cells is inverted on average an equal number of times during each repetition of the process. The states of the plurality of binary memory cells and the value in the register represent the counter value at any given time.
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公开(公告)号：CA2275115A1
公开(公告)日：1999-06-10
申请号：CA2275115
申请日：1997-09-30
Applicant: QUALCOMM INC
Inventor： WIECK CHRIS P , HUTCHISON JAMES A IV
Abstract: A method for adjusting the gain of a receive circuit, thereby improving a receiver's immunity to interference. The circuit has an LNA which amplifies the received signal (1702). The receive signal power is controlled by enabling or disabling the LNA in response to the measured received signal power (1704). The received power level is periodically compared to a threshold (1704). When the received power level is greater than the threshold, the LNA is disabled (1706). The LNA is re-enabled when the received power level is less than the threshold (1708), and there are no significant intermodulation components detected (1710). The intermodulation components are detected by briefly enabling the LNA and detecting the resultant change in the measured signal power (1710). If the detected change is more than a predetermined amount, then there are significant intermodulation components present, and the LNA is not re-enabled (1706). Otherwise, there are not significant intermodulation components present, and the LNA is re-enabled (1702).
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公开(公告)号：WO0213402A3
公开(公告)日：2002-05-10
申请号：PCT/US0124139
申请日：2001-08-01
Applicant: QUALCOMM INC
Inventor： HUTCHISON JAMES A IV , YONA ELI , SMITH GRAHAM
CPC classification number: H04B1/109 , H04B1/1027
Abstract: A radio receiver has a low noise amplifier. The low noise amplifier is enabled. If a predicted level of interference is expected to produce an acceptable bit error rate or other signal error measurement, the low noise amplifier is set to a "low" linearity level. If the predicted level of interference is not expected to be acceptable, the low noise amplifier is adjusted to a "high" level of linearity. The level of linearity required is determined by checking one or more prediction criteria: the mobile station's current operating mode, the strength of a received signal, the strength of a signal transmitted by the mobile station, the current level of interference, an acceptable level of interference, and whether the low noise amplifier is enabled or bypassed. Each of the prediction criteria may not be weighted equally. The determination is repeated as the prediction criteria change.
Abstract translation: 无线电接收机具有低噪声放大器。 低噪声放大器使能。 如果预期的干扰水平预期产生可接受的误码率或其他信号误差测量，则将低噪声放大器设置为“低”线性度。 如果预测的干扰水平预计不可接受，则将低噪声放大器调整为“高”线性度。 通过检查一个或多个预测标准来确定所需的线性度：移动台的当前操作模式，接收信号的强度，由移动台发送的信号的强度，当前的干扰水平，可接受的等级 干扰，低噪声放大器是否使能或旁路。 预测标准中的每一个可能不能平均加权。 随着预测标准的变化，重复确定。
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