WAVE FILTERS TELECOMMUNICATION MACHINES

Brand Owner Address Description
LVSAW TAIYO YUDEN CO., LTD. 7-19 Kyobashi 2-chome Chuo-ku, Tokyo 104-0031 Japan Wave filters for telecommunication machines and apparatus; filters for radio interference suppression; antenna filters; parts of telecommunication apparatus, namely, parts of portable radio communication machines, cell phone, cellular phones, mobile telephones, and amplifiers; integrated circuit modules for telecommunication machines and apparatus; integrated circuit modules for wireless communications;LOW VELOCITY SURFACE ACOUSTIC WAVE; LOW VOLTAGE SURFACE ACOUSTIC WAVE;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A receiver with adjacent interfering wave elimination function that efficiently eliminates an interfering wave adjacent to a desired reception wave and has few distortion in the receiving signal after detection, is provided with a plurality of bandpass filters for detecting an adjacent interfering wave near a desired reception wave, detects adjacent interfering waves near the desired reception wave, and controls the bandwidths of the bandpass filters that pass the desired reception wave according to the occurrence of the adjacent interfering wave. According to another aspect of the present invention, the bandpass filter for detecting the adjacent interfering wave is made of a digital filter whose center frequency is variable, and the adjacent interfering wave is detected by scanning a frequency region adjacent to the desired reception wave with the digital filter.