Fernando Silva

The reliability of data transfer between stages of photographic filmstrip use and processing is enhanced by magnetically recording a limited data set repetitively along a wide track in a frame of the filmstrip. Plural laterally offset magnetic read heads monitor the data in the magnetic track and provide output data signals on parallel independently operating channels. The data content of the output data signals is examined to determine whether the data of an individual data signal contains… Show more

The reliability of data transfer between stages of photographic filmstrip use and processing is enhanced by magnetically recording a limited data set repetitively along a wide track in a frame of the filmstrip. Plural laterally offset magnetic read heads monitor the data in the magnetic track and provide output data signals on parallel independently operating channels. The data content of the output data signals is examined to determine whether the data of an individual data signal contains corruption error. The combined linear and parallel redundancy of the system tends to ensure successful data transfer despite a less than perfect head-to-film interface and other data corrupting influences. Show less

Apparatus for use in a stage of film use and processing.

An electrical circuit suitable for decoding a binary data stream that has been encoded in a sequential bitcell code format, the encoding resulting in an encoded signal waveform that carries clock information with significant timing variability between clock pulses of bitcells in the stream and data information.

Electrical circuits suitable for decoding binary information, in accordance with either of two novel modulation methods. The novel modulation methods are referenced in the instant case, and it is explained that the methods may be used when an encoding or decoding information transfer rate may be dependent on unpredictable and variable transfer rate velocities and accelerations. The present electrical circuits provide a novel means to realize the utility of either of the modulation methods.

An electrical circuit suitable for decoding binary data comprising of first and second information; which data has been encoded into an encoded signal.