发明名称 |
Phase detector for a recorder/player using a conducting loop driven by a winding strand of the head drum motor |
摘要 |
In an electronically commutated head drum motor in combination with a motor control circuit, commutation control and tacho signals are generated from the commutation of winding strands. One of the winding strands is used for the phase detection of the read/write heads arranged on the perimeter of the rotating head drum. A commutation signal is derived from the commutation of this winding strand and the commutation signal is set in relation to the reference signal of a signal track to be recorded or scanned.
|
申请公布号 |
US5745316(A) |
申请公布日期 |
1998.04.28 |
申请号 |
US19950447595 |
申请日期 |
1995.05.23 |
申请人 |
DEUTSCHE THOMSON BRANDT GMBH |
发明人 |
SCHANDL, HARTMUT |
分类号 |
G11B15/02;G11B15/467;G11B15/473;H02P6/16;H02P6/18;(IPC1-7):G11B21/04 |
主分类号 |
G11B15/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|