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    • 10. 发明公开
    • Method and apparatus for power supply to a low noise block (LNB)
    • Vorrichtung und Verfahrenfürdie Leistungsversorgung eines rauscharmenAbwärtsumsetzerblocks(LNB)
    • EP1441531A1
    • 2004-07-28
    • EP03250387.2
    • 2003-01-22
    • Pace Micro Technology PLC
    • Lawson, Nicholas
    • H04N7/20H04B1/16
    • H04N7/20H04B1/1607H04H40/90
    • The invention to which this application relates is a method for the control and application of a power supply to a low noise block (LNB) device and/or associated apparatus connected to a broadcast data receiver. The apparatus and method includes control means which, upon the switching on of the power supply checks the voltage level at the LNB and if the voltage level exceeds a predefined threshold the LNB is deemed to be operable. If the voltage level is below the threshold level, the LNB is deemed to be inoperable, the power supply switched off and then reapplied a period of time later and again the voltage level is checked. This allows genuine failure to be detected but allows initial failure due to capacitance loading to be overcome and an operable LNB to be accurately detected.
    • 本申请涉及的发明是一种用于控制和应用向连接到广播数据接收机的低噪声块(LNB)设备和/或相关设备的电源的方法。 该装置和方法包括控制装置,其在电源接通时检查LNB处的电压电平,并且如果电压电平超过预定阈值,则LNB被认为是可操作的。 如果电压电平低于阈值电平,则认为LNB不可操作,电源关闭,然后重新施加一段时间,再次检查电压电平。 这允许真正的故障被检测到,但允许由于电容负载的初始故障被克服,并且可准确地检测可操作的LNB。