Title :
A thin film head for HD-VCRs
Author :
Ohmori, H. ; Yamamoto, T. ; Shoji, M. ; Sugiyama, Y. ; Hayashi, K. ; Hayakawa, M.
Author_Institution :
Res. Center, Sony Corp., Yokohama, Japan
fDate :
11/1/1994 12:00:00 AM
Abstract :
A new design of the thin film magnetic head, embedded thin film head, having similar rubbing surface to the TSS (Tilted-Sputtered-Sendust) head is proposed. This head has high efficiency and low impedance by minimizing the size of the magnetic core and using a thin film coil. Both the normalized output voltage per root unit of inductance and the SNR showed +3.6 dB higher at 20 MHz than those of the TSS head for Hi-8 VCRs. This head, coupled with the other advantages, is one of the best candidates for the forthcoming digital HD-VCRs
Keywords :
coils; digital television; high definition television; magnetic cores; magnetic heads; magnetic thin film devices; video tape recorders; 20 MHz; HDTV; Hi-8 VCRs; SNR; digital HD-VCRs; efficiency; embedded thin film head; impedance; magnetic core; normalized output voltage; rubbing surface; thin film coil; thin film magnetic head; Coils; HDTV; High definition video; Inductance; Magnetic cores; Magnetic films; Magnetic heads; Magnetostatics; Transistors; Video recording;
Journal_Title :
Magnetics, IEEE Transactions on
