发明授权
- 专利标题: Automatic frequency control method
- 专利标题(中): 自动频率控制方式
-
申请号: US998608申请日: 1997-12-29
-
公开(公告)号: US6011818A公开(公告)日: 2000-01-04
- 发明人: Jae Mo Yang
- 申请人: Jae Mo Yang
- 申请人地址: KRX Kyungki-Do
- 专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人地址: KRX Kyungki-Do
- 优先权: KRX96-78037 19961230
- 主分类号: H03J7/00
- IPC分类号: H03J7/00 ; H03J7/06 ; H04L27/06
摘要:
The present invention relates to a frequency control apparatus for a television and a video cassette tape recorder, and more particularly to an automatic frequency control method wherein a frequency value of a voltage controlled oscillator is increased or decreased and stored by determining whether an oscillator is in a range capable of operating a phase locked loop when an oscillation frequency of the voltage controlled oscillator of the phase locked loop is not synchronized with the intermediate frequency when a frequency is automatically controlled by comparing phases and frequencies of the phase locked loop and the intermediate frequency.
公开/授权文献
- US5308331A Single use syringe 公开/授权日:1994-05-03
信息查询