Temperature compensation for an oscillator crystal
    32.
    发明申请
    Temperature compensation for an oscillator crystal 有权
    振荡晶体的温度补偿

    公开(公告)号:US20110187422A1

    公开(公告)日:2011-08-04

    申请号:US12697285

    申请日:2010-01-31

    IPC分类号: H03L7/06 G05D23/20

    摘要: An electronic device is equipped with an oscillator interface to be coupled to an oscillator crystal of an oscillator element. The electronic device includes an oscillator circuit which is coupled to the oscillator interface and generates an oscillator signal. The electronic device is further provided with a temperature measurement interface to be coupled to a temperature sensor of the oscillator element so as to receive the temperature signal. For accomplishing temperature compensation, the electronic device is provided with a measurement controller coupled to the measurement interface and configured to measure a first value of the temperature signal at a first point of time and a second value of the temperature signal at a second point of time. A frequency drift estimator is provided so as to estimate a frequency drift of the oscillator signal on the basis of the first value of the temperature signal and a second value of the temperature signal. By means of a compensation logic, a frequency compensation signal for the oscillator circuit is generated on the basis of the estimated frequency drift.

    摘要翻译: 电子设备配备有要耦合到振荡器元件的振荡器晶体的振荡器接口。 电子设备包括振荡器电路,其耦合到振荡器接口并产生振荡器信号。 电子设备还设置有温度测量接口以耦合到振荡器元件的温度传感器,以便接收温度信号。 为了完成温度补偿,电子设备设置有耦合到测量接口的测量控制器,并被配置成在第一时间点测量温度信号的第一值,并在第二时间点测量温度信号的第二值 。 提供频率漂移估计器,以便基于温度信号的第一值和温度信号的第二值来估计振荡器信号的频率漂移。 通过补偿逻辑,基于估计的频率漂移产生用于振荡器电路的频率补偿信号。

    Method and System for Sharing a Clock Reference Signal within an Integrated Mobile Device
    33.
    发明申请
    Method and System for Sharing a Clock Reference Signal within an Integrated Mobile Device 有权
    用于在集成移动设备内共享时钟参考信号的方法和系统

    公开(公告)号:US20100069085A1

    公开(公告)日:2010-03-18

    申请号:US12210763

    申请日:2008-09-15

    IPC分类号: H04W4/02

    摘要: A method and system of a GPS system controlling a voltage of an input signal to an oscillator, the oscillator producing a clock reference signal to the GPS system and a modem system, such that a frequency of the clock reference signal is altered to synchronize the modem system with a corresponding network while the GPS system remains in a locked state.

    摘要翻译: 控制向振荡器输入信号的电压的GPS系统的方法和系统,所述振荡器产生到GPS系统的时钟参考信号和调制解调器系统,使得时钟参考信号的频率被改变以使调制解调器同步 系统具有相应的网络,同时GPS系统保持在锁定状态。

    Qualification and selection of the frequency channels for an adaptive frequency hopping method by means of field strength measurement
    34.
    发明授权
    Qualification and selection of the frequency channels for an adaptive frequency hopping method by means of field strength measurement 失效
    通过场强测量对自适应跳频方法的频道进行鉴定和选择

    公开(公告)号:US07613224B2

    公开(公告)日:2009-11-03

    申请号:US10850500

    申请日:2004-05-20

    IPC分类号: H04B1/00

    摘要: In a method for qualification of the transmission quality of a frequency channel in a wire-free communication system that has two or more frequency channels, units in the system communicate via the frequency channels. Data is transmitted in time slots in a time pattern using a time slot method. The influence of possible interference sources is determined in a measurement time slot in which no data is received, in that the field strength is measured at the frequencies of two or more frequency channels, and the field strength information is used for qualification decisions relating to the frequency channels.

    摘要翻译: 在具有两个以上频率信道的无线通信系统中对频道的传输质量进行鉴定的方法中,系统中的单元经由频道进行通信。 使用时隙方法以时间模式在时隙中发送数据。 可能的干扰源的影响是在没有接收到数据的测量时隙中确定的,因为在两个或更多个频率信道的频率上测量场强,场强信息用于与 频道。

    Compensation for the carrier frequency offset in a receiving apparatus, which is designed for a plurality of modulation types, in a mobile communications system
    35.
    发明授权
    Compensation for the carrier frequency offset in a receiving apparatus, which is designed for a plurality of modulation types, in a mobile communications system 有权
    在移动通信系统中针对多种调制类型设计的接收设备中的载波频率偏移的补偿

    公开(公告)号:US07545885B2

    公开(公告)日:2009-06-09

    申请号:US11263423

    申请日:2005-10-31

    IPC分类号: H04L27/00

    摘要: The present invention relates to a receiving apparatus for a mobile communications system which can be modulated using different modulation types at the transmitter end. According to one embodiment of the invention, in the middle of a data burst of a Bluetooth communications system, a GFSK modulation method is switched to an M-DPSK modulation method, which is used for the payload data. A frequency offset estimation unit is provided for GFSK-modulated signals in a first receiving section and estimates the frequency offset by averaging over a bit sequence of a trailer of a data burst. The frequency offset is corrected in a second receiving section, by means of a frequency correction unit which operates on the basis of the CORDIC algorithm.

    摘要翻译: 本发明涉及一种移动通信系统的接收装置,其可以在发射机端使用不同的调制类型进行调制。 根据本发明的一个实施例,在蓝牙通信系统的数据突发的中间,将GFSK调制方法切换到用于有效载荷数据的M-DPSK调制方法。 为第一接收部分中的GFSK调制信号提供频率偏移估计单元,并通过在数据突发的预告片的比特序列上求平均来估计频率偏移。 通过基于CORDIC算法操作的频率校正单元,在第二接收部分中校正频率偏移。

    Optelectronic sensor
    36.
    发明申请
    Optelectronic sensor 有权
    光电传感器

    公开(公告)号:US20090016735A1

    公开(公告)日:2009-01-15

    申请号:US12216626

    申请日:2008-07-08

    IPC分类号: H04B10/00

    CPC分类号: G01V8/12

    摘要: An optoelectronic sensor includes at least one light transmitter for the transmission of light signals into a monitored zone, at least one light receiver for the reception of light signals transmitted from the light transmitter and a control device for the generation and/or influencing of the light signals and for the generation of an object detection signal in the case of the presence of an object in the monitored region in dependence on the output signals of the light receiver. In this connection, the light signals transmitted into the monitored zone by the light transmitter are each generated by an output signal modulated in accordance with the spread spectrum method using a random pseudo-noise code.

    摘要翻译: 光电传感器包括至少一个光传输器,用于将光信号传输到监控区域中,至少一个光接收器用于接收从光发送器发送的光信号,以及控制装置,用于产生和/或影响光 根据光接收机的输出信号,在被监视区域中存在目标物体的情况下生成物体检测信号。 在这方面,由光发射机传输到监视区域的光信号各自由使用随机伪噪声码的根据扩频方法调制的输出信号产生。

    Devices with reciprocal wake-up function from the standby mode
    37.
    发明授权
    Devices with reciprocal wake-up function from the standby mode 有权
    备用模式下具有相互唤醒功能的设备

    公开(公告)号:US07409567B2

    公开(公告)日:2008-08-05

    申请号:US10925565

    申请日:2004-08-25

    IPC分类号: G06F1/26 G06F1/32 G06F3/00

    摘要: Apparatus (20) having two devices (21, 22) which can be connected to one another via an interface (23, 24), where the devices (21, 22) each have an activation unit which, upon receipt of a control signal at a control input, prompts the respective device (21, 22) to change over from a standby mode to an active mode, and where the control signal is transmitted by the respective other device (21, 22), and the control input in one device (21) is an interface connection and, in the other device (22), is located outside the interface (23, 24).

    摘要翻译: 具有可经由接口(23,24)彼此连接的两个设备(21,22)的设备(20,22),其中设备(21,22)各自具有激活单元,其在接收到控制信号时 控制输入​​提示相应设备(21,22)从待机模式切换到活动模式,并且其中控制信号由相应的其他设备(21,22)发送,并且控制输入在一个设备 (21)是接口连接,并且在另一个设备(22)中,位于接口(23,24)的外部。

    Mobile radio receiver device
    38.
    发明授权
    Mobile radio receiver device 有权
    移动无线电接收设备

    公开(公告)号:US07356324B2

    公开(公告)日:2008-04-08

    申请号:US11020747

    申请日:2004-12-23

    IPC分类号: H04B1/26

    摘要: The invention is directed to a receiver arrangement, for example, in a mobile radio, which allows the use of slowly locking phase locked loops for a point-to-point connection between two transceivers, even in the case of a heterodyne receiver structure. The need to change channels between a transmission slot and a reception slot is avoided by virtue of a changeover device being provided for the purpose of interchanging the in-phase and quadrature components at the input side on a down-conversion frequency mixer. This advantageously allows either the upper sideband or the lower sideband of a useful signal to be down-converted without the need to change channel.

    摘要翻译: 本发明涉及例如在移动无线电中的接收器装置,其允许在两个收发器之间的点对点连接中使用缓慢锁定的锁相环,即使在外差接收器结构的情况下也是如此。 通过提供转换装置来避免在传输时隙和接收时隙之间改变信道的需要,以便在下变频混频器上在输入侧交换同相和正交分量。 这有利地允许下行转换有用信号的上边带或下边带,而不需要改变信道。

    Demodulator and demodulation method for demodulating received signals
    39.
    发明授权
    Demodulator and demodulation method for demodulating received signals 有权
    用于解调接收信号的解调器和解调方法

    公开(公告)号:US07317768B2

    公开(公告)日:2008-01-08

    申请号:US10485975

    申请日:2002-06-07

    IPC分类号: H03D3/00

    CPC分类号: H03D3/007

    摘要: The invention relates to a demodulator and also a demodulation method and enables a reliable demodulation even when the intermediate frequency range overlaps the range of the data frequencies of the signal. For this purpose, a rapidly oscillating output signal is generated from the in-phase signal and also the quadrature signal, the sign of which output signal varies in a manner dependent on the product of the signs of the in-phase signal and of the quadrature signal. Either an XOR gate or a multiplier stage may be used in order to generate an output signal of this type.

    摘要翻译: 本发明涉及解调器和解调方法,并且即使当中间频率范围与信号的数据频率的范围重叠时也能够进行可靠的解调。 为此,从同相信号和正交信号产生快速振荡的输出信号,其输出信号的符号以取决于同相信号和正交信号的符号的乘积的方式变化 信号。 为了产生这种类型的输出信号,可以使用异或门或乘法器级。

    Method and circuit arrangement for determining a charge consumed within a period in mobile devices
    40.
    发明申请
    Method and circuit arrangement for determining a charge consumed within a period in mobile devices 有权
    用于确定在移动设备中的一段时间内消耗的电荷的方法和电路装置

    公开(公告)号:US20060252467A1

    公开(公告)日:2006-11-09

    申请号:US11371828

    申请日:2006-03-09

    IPC分类号: H04B1/38

    摘要: A method for calculating the power consumption of a mobile device, particularly of a mobile station of a mobile radio system, in an observation period Δt based on various possible system states sk in which the device can be in the period Δt. A value of a quantity Δk is determined system-state-dependently for the system states sk occurring in the period Δt. The power consumption in the period Δt is calculated in such a manner that the quantities Δk and state-dependent typical currents ik are taken into consideration.

    摘要翻译: 一种用于在观察期间Deltat中基于移动无线电系统的移动台的功耗来计算功耗的方法,该方法基于该设备可以在其中的各种可能的系统状态 期间Deltat。 对于在时间段Deltat中发生的系统状态,系统状态地确定数量Delta N k的值。 以这样的方式计算期间Deltat中的功率消耗,即考虑到数量Delta>和状态相关的典型电流i k k。