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Jeon; Chul-ho Patent Filings

Jeon; Chul-ho

Patent Applications and Registrations

Patent applications and USPTO patent grants for Jeon; Chul-ho.The latest application filed is for "apparatus for and method of controlling photo diode using digital potentiometer".

Company Profile
0.4.7
  • Jeon; Chul-ho - Suwon-si KR
  • Jeon; Chul-ho - Gyeonggi-do KR
  • Jeon; Chul-ho - Suwon KR
  • Jeon, Chul-ho - Suwon-el KR
  • Jeon, Chul-ho - Suwon-city KR
  • JEON, CHUL-HO - SEOUL KR
*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.
Patent Activity
PatentDate
Apparatus for and method of controlling photo diode using digital potentiometer
Grant 7,417,940 - Kim , et al. August 26, 2
2008-08-26
Optical signal converter and method of controlling amplification gain according to rotating speed of optical disc
Grant 7,251,206 - Baek , et al. July 31, 2
2007-07-31
Method and apparatus for identifying the type of optical recording medium
Grant 7,203,148 - Kim , et al. April 10, 2
2007-04-10
Lens position determination apparatus of optical pickup
Grant 7,116,608 - Jun , et al. October 3, 2
2006-10-03
Apparatus for and method of controlling photo diode using digital potentiometer
App 20050163019 - Kim, Hong-kuk ;   et al.
2005-07-28
Optical signal converter and method of controlling amplification gain according to rotating speed of optical disc
App 20040264328 - Baek, Chang-hoon ;   et al.
2004-12-30
Laser diode driving circuit
App 20040258116 - Kim, Young-ju ;   et al.
2004-12-23
Apparatus and method for generating tracking error signal and optical recording/reproducing system using same
App 20040202070 - Park, Kyoung-hwan ;   et al.
2004-10-14
Lens position determination apparatus of optical pickup
App 20040062184 - Jun, Jong-ha ;   et al.
2004-04-01
Method and apparatus for identifying the type of optical recording medium
App 20030202444 - Kim, Jong-Ryull ;   et al.
2003-10-30
Disk Player Capable Of Adjusting Tilt Of Optical Pickup
App 20010012261 - KIM, SANG-TAE ;   et al.
2001-08-09

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