Adaptive synchronizing apparatus for handling phase encoded binary information

Claim 2

In apparatus for deriving and processing phase encoded information from a plurality of tracks recorded upon an information storage medium, each of the tracks having stored thereon at least one information block including a preamble portion and an information portion, the information portion having a plurality of corresponding information bits in the tracks comprising a byte, the combination comprising: a. clock means responsive to the preamble and information portions of at least one track for providing a clock signal in synchronism with the data rate of the preamble and information portion; b. a plurality of storage devices associated with each of the tracks and responsive to said clock signal for storing in a predetermined order successive bits of information derived from the corresponding track; c. first means associated with each of the tracks for detecting the first information bit of the information portions and for providing start of information signals indicative thereof; d. second means responsive to the first start of information signal derived from said first means, for providing an initiate signal delayed from the occurrence of the first start of information signal by a period of time sufficient to permit each information bit of a single byte to be stored on its corresponding storage device; and e. read out means responsive to the initiate signal for deriving substantially simultaneously from said storage devices the information bits comprising a single byte.

Claim 3

Apparatus as claimed in claim 1, wherein the preamble comprises a series of like bits, said apparatus further comprising means associated with each of the tracks for providing a conditioning signal upon the occurrence of a predetermined number of the like bits in the preamble.

Claim 4

Apparatus as claimed in claim 2, wherein there is included cOincidence means responsive to the first start of information signal and to the conditioning signals derived from selected tracks to facilitate the application of the initiate signal to said read out means.

Claim 5

Apparatus as claimed in claim 3, wherein said first means is coupled to said coincidence means to be primed upon the occurrence of the conditioning signal, thereby enabling said first means to generate the start of information signal.

Claim 6

Apparatus for deriving and processing phase encoded information from a plurality of tracks recorded upon an information storage medium, the phase encoded information signals comprising a plurality of periodic spaced, information bearing transitions and non-significant transitions, each of the tracks having stored thereon at least one information block of a phase encoded information signal including a preamble portion wherein a plurality of the information bearing transitions are of the same type and at least one information bearing transition of the opposite type and an information portion wherein an information bearing transition in each track comprise a single information byte, said apparatus comprising: a. clock means responsive to the transitions of a single type of the preamble portion of at least one track, for providing a clock signal in synchronism with the one preamble portion; b. a plurality of storage devices associated with each of the tracks for storing in the order received successive bits of information; c. gating means responsive to the clock signal for applying signal bits corresponding to the information bearing transitions successively to the plurality of storage devices associated with its track; d. first means associated with each of the tracks for detecting the first signal of the information portion and for providing start of information signals indicative thereof; e. second means responsive to the first start of information signal derived from said first means for providing an initiate signal delayed from the occurrence of the first start of information signal by a period of time sufficient to permit each signal bit of a single byte to be stored in its corresponding plurality of storage devices; and f. read out means responsive to the initiate signal for deriving substantially simultaneously from the corresponding ones of said storage devices associated with each of the tracks, the signal bits comprising a single byte.

Claim 7

Apparatus for deriving and processing phase encoded information from a plurality of tracks recorded upon an information storage medium, the phase encoded information signals comprising a plurality of periodic spaced, information bearing transitions and non-significant transitions, each of the tracks having stored thereon at least one information block of a phase encoded information signal including a preamble portion wherein a plurality of the information bearing transitions are of the same type and at least one information bearing transition of the opposite type and an information portion wherein an information bearing transition in each track comprise a single information byte, said apparatus comprising: a. clock means responsive to the transitions of a single type of the preamble portion of at least one track, for providing a clock signal in synchronism with the one preamble portion; b. a plurality of storage devices associated with each of the tracks for storing in the order received successive bits of information; c. gating means responsive to the clock signal for applying signal bits corresponding to the information bearing transitions successively to the plurality of storage devices associated with its track; d. first means associated with each of the tracks for detecting the first signal of the information portion and for providing start of information signals indicative thereof; e. second means responsive to the first start of information signal derived from said first means for providing an initiate signal delayed from the occurrence of the first start of information signal by a period of time sufficient to permit each signal bit of a single byte to be stored in its corresponding plurality of storage devices; and f. read out means responsive to the initiate signal for deriving substantially simultaneously from the corresponding ones of said storage devices associated with each of the tracks, the signal bits comprising a single byte.

Claim 8

Apparatus as claimed in claim 5, wherein the information storage medium includes a manifestation recorded thereon indicating that the information signals are phase encoded and said second means being responsive to the first start of information signal and to the sensing of the manifestation for providing the initiate signal.

Claim 9

Apparatus as claimed in claim 5, wherein said first means is responsive to a predetermined number of the plurality of the information bearing transitions of the same type before providing the start of information signal.

Claim 10

Apparatus as claimed in claim 7, wherein said first means includes an integration circuit for integrating the plurality of information bearing transitions of the same type and for providing a priming signal indicative of the sensing of a predetermined number of the aforementioned signals, and a storage circuit responsive to the priming signal to be disposed in a primed state and responsive when in the primed state to sensing of the one transition of opposite type to provide the start of information signal.