Learn more

CHENG ZIYI

Overview
  • Total Patents
    43
About

CHENG ZIYI has a total of 43 patent applications. Its first patent ever was published in 1997. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and Australia. Its main competitors in its focus markets audio-visual technology, computer technology and control are SOUND ADVANCE SYST INC, NEUSOUND CO LTD and SHENZHEN MEIDONG ACOUSTICS CO LTD.

Patent filings per year

Chart showing CHENG ZIYIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Cheng Ziyi 43

Latest patents

Publication Filing date Title
WO2006122474A1 A circuit and method of enhancing the storage lifetime
CN101038529A Prolonging service life of internal or external memory with long service non-volatile memory chip
WO2006047954A1 The method of obtaining and applying the materials for autoantigen immunological recognition
CN101048497A Method for acquiring and applying needed raw material for reccogniting self antigen immunity
CN1749971A Improving service life of internal or external storage by using long lift non-volatile storage chip
US2006261931A1 Automobile security defence alarm system with face identification and wireless communication function
CN1597399A Automobile antitheft alarming deivce possesing face identification discrimination and radio communication function
CN1579848A Automobile antitheft alarm with image pickup and wireless communication function
CN1565874A Assembling mechanism for engine wheel spindle of airplane
AU8952401A A noise-suppressing receiver
CN1328396A Noise-reducing microphone
WO0163969A1 An anti-noise pick-up
CN1328395A Noise-reducing microphone
WO0158210A1 Anti-noise pickup
CN1297322A Combined electret pick-up with high noise resistance
WO0005922A1 An anti-noise-electret pick-up
CN1193233A Sound signal control switch for low-distortion and low-noise microphone
CN1195208A Improved low distortion low noise microphone
CN1207643A Ear hung rest for earphone adapted to be supported entirely by ear
CN1174485A Low-distortion and low-noise microphone