Copyright Notice © 2009-2024 czvv.com 传众 版权所有
METHOD AND APPARATUS FOR DETECTING KEY
申请公布号：WO2012040973(A1)
申请号：WO2010CN79309
申请日期：2010.12.01
申请公布日期：2012.04.05
发明人：LONG, TAO;LIU, ZHENGDONG;LONG, JIANG
分类号：G01R31/327;G01R27/26
主分类号：G01R31/327
摘要：A method and an apparatus for detecting a key are provided. The method comprises: detecting the key to obtain a key signal (S11); sampling the key signal with a variable frequency, and outputting a control signal when the number of times of sampling the key effective signal in a pre-set time range reaches or exceeds a pre-set number (S12), wherein sampling with the variable frequency means that the sampling frequency is gradually increased from a first frequency to a second frequency, then gradually reduced from the second frequency to the first frequency, and the gradual increasing and reducing processes are repeated, moreover, the sampling frequency stays for a pre-set time in each frequency. The method and the apparatus for detecting the key reduce the probability of key detection being interfered by external signals.
Process for removing multivalent metals from waste effluents
Key removable cylinder assembly from locket
Vehicle with improved steering system device
System for controlling the delivery of data from a data source
Process of pulse duration modulation of a multi-phase converter
Scaling aerodynamic compensation in an ink jet printer
Bi-directional ink jet printer
Detection system for emergency vehicles with signal preemption means
Circuit arrangement for monitoring operating functions in motor vehicles
Universal frequency synthesizer
Detection device of electronic timepiece
Apparatus and method for individually testing combined active elements