Improvements of the PLL Demodulator for CD-4 Carrier Disc

Takahashi N, Suzuki F, Kasuga M. Improvements of the PLL Demodulator for CD-4 Carrier Disc. In: AES Convention 58. Audio Engineering Society; 1977. Paper 1273. Available from: https://aes.org/publications/elibrary-page/?id=3081

@inproceedings{Takahashi1977_3081,
  author = {Takahashi, Nobuaki and Suzuki, Fujio and Kasuga, Masao},
  title = {{Improvements of the PLL Demodulator for CD-4 Carrier Disc}},
  booktitle = {AES Convention 58},
  note = {Paper 1273},
  year = {1977},
  month = nov,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=3081}
}

TY  - CPAPER
TI  - Improvements of the PLL Demodulator for CD-4 Carrier Disc
AU  - Takahashi, Nobuaki
AU  - Suzuki, Fujio
AU  - Kasuga, Masao
T2  - AES Convention 58
M1  - Paper 1273
PY  - 1977
DA  - 1977/11/06
UR  - https://aes.org/publications/elibrary-page/?id=3081
PB  - Audio Engineering Society
LA  - en
AB  - A PLL demodulation is commonly applied to retrieve FM carriers from the CD-4 carrier disc on which the carriers are superimposed on the audio base-band signals. In the demodulation, distortion is often introduced because of nonlinearity in the recording and playback chain of the CD-4 system. This paper describes a method for measuring the distortion using a band noise, by which the demodulator distortion can be quantitatively determined, and an approach to its reduction is also discussed.
ER  -