公开(公告)号：US20030035071A1

公开(公告)日：2003-02-20

申请号：US10217978

申请日：2002-08-13

Applicant: PACE MICRO TECHNOLOGY PLC.

Inventor： Stephen Beales ,  Darren Butler

IPC: H04N005/44

CPC classification number: H03L1/02

Abstract: The invention relates to a method of controlling the operation of a voltage controlled oscillator (VCO) with respect to a SAW filter (6) within a broadcast data receiver (BDR) (104). Over time, it is found that during normal operation of the BDR (104), the SAW filter (6) is susceptible to frequency drift which can affect the operation of the BDR. In accordance with the invention, temperature readings are taken at various time intervals from within the BDR (104) to provide an indication of changes in temperature over time and, if the temperature does change in the BDR with time then the operating frequency of the VCO can be adjusted to a predefined frequency value which is appropriate for the temperature values measured. By adjusting the operating frequency of the VCO with changes in temperature, the drift of the SAW filter (6) can be compensated for, thereby ensuring the continued operation of the BDR (104) in the required manner.

Abstract translation: 本发明涉及一种控制广播数据接收机（BDR）（104）内的SAW滤波器（6）的压控振荡器（VCO）的操作的方法。 随着时间的推移，发现在BDR（104）的正常操作期间，SAW滤波器（6）易受频率漂移的影响，这可能影响BDR的操作。 根据本发明，从BDR（104）内的各种时间间隔获取温度读数，以提供温度随时间变化的指示，并且如果温度随时间而在BDR中变化，则VCO的工作频率 可以调整到适合于测量的温度值的预定频率值。 通过随温度变化调节VCO的工作频率，可以补偿SAW滤波器（6）的漂移，从而确保BDR（104）以所需方式继续运行。

公开(公告)号：US20020191120A1

公开(公告)日：2002-12-19

申请号：US10170790

申请日：2002-06-12

Applicant: PACE MICRO TECHNOLOGY PLC.

Inventor： Stephen Beales ,  James Rowe

IPC: H04N005/44 ,  H04N005/50

CPC classification number: H04N5/50 ,  H04N5/52 ,  H04N21/4263 ,  H04N21/4383

Abstract: The invention relates to the provision of a broadcast data receiver with at least one tuner and a control system therefore. The tuner is tuned to specific frequencies to obtain transmitted data from which a television channel can be generated. The frequency tuned to is dependent on the channel selected and the invention allows the output signal quality for the channel at each frequency to be optimised by allocating a take over point value at which the transition between radio frequency amplitude gain control and Intermediate frequency amplitude gain control occurs on a channel frequency by channel frequency basis rather than the conventional general take over point value.

Abstract translation: 本发明涉及提供具有至少一个调谐器和控制系统的广播数据接收机。 将调谐器调谐到特定频率以获得可​​以从其产生电视频道的传输数据。 调谐到的频率取决于所选择的信道，并且本发明允许通过分配无线电频率幅度增益控制和中频增益控制之间的转变的接收点值来优化每个频率处的信道的输出信号质量 以通道频率为基础，而不是常规的接收点值发生在信道频率上。

公开(公告)号：US20020052184A1

公开(公告)日：2002-05-02

申请号：US09974077

申请日：2002-01-08

Applicant: PACE MICRO TECHNOLOGY PLC.

Inventor： Stephen Beales ,  Stuart Griffin

IPC: H04B001/00

CPC classification number: H04B1/525

Abstract: The invention relates to the simultaneous operation of items of electrical apparatus, such as but not exclusively, a broadcast data receiver and a DECT telephone system. A problem with this type of apparatus is that the operating frequencies of the same can overlap and in turn cause interference in the operation of the respective items. The invention provides a method for identifying the overlap of the RF ranges of the apparatus, and having identified the same, adjusting the operating characteristics of one of the items to allow the interference to be avoided or minimized and the opportunity for the items of apparatus to be combined into one unit.

Abstract translation: 本发明涉及电气设备的项目的同时操作，例如但不限于广播数据接收机和DECT电话系统。 这种类型的装置的问题在于，其工作频率可能重叠，从而导致对各个物品的操作的干扰。 本发明提供了一种用于识别装置的RF范围的重叠并且已经识别的装置的方法，调整其中一个项目的操作特性以允许避免或最小化干扰，并且将装置的机会 组合成一个单位。