Abstract: A method and apparatus are provided. The method includes receiving, by a user equipment (UE), a phase shift keying (PSK) modulated signal from a transceiver, derotating the PSK modulated signal, and equalizing the PSK modulated signal using a maximum likelihood sequence estimator (MLSE) based on a first main tap gain (MTG) look up table (LUT) and a first inter-symbol interference (ISI) LUT corresponding to even time samples and a second MTG LUT and a second ISI LUT corresponding to odd time samples.

Abstract: A method and apparatus are provided. The method includes receiving, by a user equipment (UE), a phase shift keying (PSK) modulated signal from a transceiver, derotating the PSK modulated signal, and equalizing the PSK modulated signal using a maximum likelihood sequence estimator (MLSE) based on a first main tap gain (MTG) look up table (LUT) and a first inter-symbol interference (ISI) LUT corresponding to even time samples and a second MTG LUT and a second ISI LUT corresponding to odd time samples.

Abstract: The present disclosure describes techniques for DVD-RAM header or land/groove detection. In some aspects, a wobble signal is integrated, an offset is removed from the integrated wobble signal, and a header is detected in the non-offset integrated wobble signal. In some aspects, a threshold value is adjusted based on a comparison of the received wobble signal and the threshold value, and a header is detected based on the adjusted threshold value.

Abstract: A plurality of time periods corresponding to times at which a predicted transition in a signal is expected to occur are determined. The signal has bi-phase modulation, and the predicted transition corresponds to a transition in the signal from a first state to a second state as part of the bi-phase modulation. A next transition in the signal from the first state to the second state is detected, and it is determined whether the detected next transition occurred during one of the plurality of time periods. In response to determining that the detected next transition occurred during one of the plurality of time periods, a timing of the detected next transition is used to adjust a clock used for recovering channel bits in the signal.

Abstract: In a method of correcting a channel bit pattern that violates bi-phase modulation constraint in a bi-phase modulated portion of a high frequency modulation (HFM) signal, a sequence of channel bits is recovered from the HFM signal. The recovered sequence of channel bits is analyzed to generate a bi-phase modulation compliant sequence of channel bits based on the recovered sequence of channel bits, wherein the bi-phase modulation compliant sequence of channel bits does not violate the bi-phase modulation constraint in the bi-phase modulated portion of the HFM signal. Bi-phase modulated HFM bits are recovered from the bi-phase modulation compliant sequence of channel bits to generate a detection output corresponding to the recovered bi-phase modulated HFM bits.