G11B7/003

COMPENSATING TRACKING ERROR SIGNAL OFFSET IN OPTICAL TAPE STORAGE SYSTEMS

Operations include compensating for a Tracking Error Signal (TES) offset in an optical tape drive. The tracking error offset compensation system detects a control signal for controlling movement of an optical head across a surface of a tape. The tracking error offset compensation system computes an estimated movement of the optical head, based on the initial control signal. The tracking error offset compensation system determines an estimated TES offset, based on the estimated movement of the optical head. The tracking error offset compensation system uses the estimated TES offset to correct a TES. The tracking error offset compensation system transmits the corrected TES, for controlling additional movement of the optical head.

Optical storage system divider based DRAW verification with high frequency writing strategy pattern
10176837 · 2019-01-08 · ·

An optical storage system includes an optical head configured to split a light beam into a higher power main beam and at least one lower power side beam. The optical storage system also includes a controller configured to alter an optical medium, via modulation of the higher power main beam according to a writing strategy waveform that defines at least n pulses for every n bits of data to be written to the medium, while processing a first signal resulting from the at least one lower power side beam being reflected from the medium and a second signal indicative of the writing strategy waveform to remove noise from the first signal caused by the higher power main beam to generate output indicative of the data directly after writing.

Optical storage system divider based DRAW verification with high frequency writing strategy pattern
10176837 · 2019-01-08 · ·

An optical storage system includes an optical head configured to split a light beam into a higher power main beam and at least one lower power side beam. The optical storage system also includes a controller configured to alter an optical medium, via modulation of the higher power main beam according to a writing strategy waveform that defines at least n pulses for every n bits of data to be written to the medium, while processing a first signal resulting from the at least one lower power side beam being reflected from the medium and a second signal indicative of the writing strategy waveform to remove noise from the first signal caused by the higher power main beam to generate output indicative of the data directly after writing.

Servo pattern for precise tracking in optical tapes
10102875 · 2018-10-16 · ·

Techniques for performing precise tracking in optical tapes are provided. The techniques include providing and using a servo pattern on an optical tape. The servo pattern includes a first set of parallel physical grooves slanted in a first direction across a width of the optical tape and a second set of parallel physical grooves slanted in a second direction that is different from the first direction across the width of the optical tape. Subsets of the first set of parallel physical grooves alternate with subsets of the second set of parallel physical grooves along a length of the optical tape. Two subsets of the first set of parallel physical grooves separated by one subset of the second set of parallel physical grooves form a servo frame in the optical tape.

Archiving imagery and documents on digital optical tape
10067697 · 2018-09-04 · ·

Methods and apparatus for archival storage of an image are disclosed. The image is converted into one or more bit plane images. Fiducial markers are generated and written onto digital optical tape concurrent with writing the one or more bit plane images onto the digital optical tape.

Archiving imagery and documents on digital optical tape
10067697 · 2018-09-04 · ·

Methods and apparatus for archival storage of an image are disclosed. The image is converted into one or more bit plane images. Fiducial markers are generated and written onto digital optical tape concurrent with writing the one or more bit plane images onto the digital optical tape.

35MM AUTOMATED VIDEO AND DATA STORAGE WITH REMOTE ACCESS DATA RETRIEVAL
20180233170 · 2018-08-16 · ·

Systems and methods convert computer generated data and video into patterns of 0s and 1s for storage as a still image on camera film (e.g., 35 mm film). A system can include a user interface identifying computer generated data for conversion into a still image pattern of 0s and 1s for storage as a still image on a frame of film, a microprocessor programmed to convert the computer generated data into a still image pattern of 0s and 1s, and film imaging hardware for processing the frame of film with the still image pattern as a still image on the frame of film. The data can include at least one of: video data, pictures, text, and diagrams. The frame can be stored in a cartridge, which can contain more than one frame. The cartridge can be stored and retrieved from a multiple cartridge housing including automated storage and reading hardware.

35MM AUTOMATED VIDEO AND DATA STORAGE WITH REMOTE ACCESS DATA RETRIEVAL
20180233170 · 2018-08-16 · ·

Systems and methods convert computer generated data and video into patterns of 0s and 1s for storage as a still image on camera film (e.g., 35 mm film). A system can include a user interface identifying computer generated data for conversion into a still image pattern of 0s and 1s for storage as a still image on a frame of film, a microprocessor programmed to convert the computer generated data into a still image pattern of 0s and 1s, and film imaging hardware for processing the frame of film with the still image pattern as a still image on the frame of film. The data can include at least one of: video data, pictures, text, and diagrams. The frame can be stored in a cartridge, which can contain more than one frame. The cartridge can be stored and retrieved from a multiple cartridge housing including automated storage and reading hardware.

Storage system using unformatted digital optical tape
10033961 · 2018-07-24 · ·

Digital optical tape archival storage systems and methods are disclosed. A digital optical tape recorder simultaneously writes data and two or more guide tracks onto an unformatted digital optical tape recording medium. A digital optical tape reader includes a camera and an image processor. The camera captures a two-dimensional image of the digital optical tape recording medium including the data and the two or more guide tracks. The image processor extracts the data from the two-dimensional image based, at least in part, on the guide tracks.

Storage system using unformatted digital optical tape
10033961 · 2018-07-24 · ·

Digital optical tape archival storage systems and methods are disclosed. A digital optical tape recorder simultaneously writes data and two or more guide tracks onto an unformatted digital optical tape recording medium. A digital optical tape reader includes a camera and an image processor. The camera captures a two-dimensional image of the digital optical tape recording medium including the data and the two or more guide tracks. The image processor extracts the data from the two-dimensional image based, at least in part, on the guide tracks.