Zobrazeno 1 - 10
of 33
pro vyhledávání: '"J. C. Lehureau"'
Autor:
J. Colineau, J.-C. Lehureau
Publikováno v:
Journal of Magnetism and Magnetic Materials. 249:431-436
Volume recording is the key to increase optical storage density. Disc transparency requires the pits of each layer to generate very small phase shift to the transmitted beam. Readout of very shallow phase shift has been proven possible, and new track
Autor:
J.-C. Lehureau, J. Colineau
Publikováno v:
IEEE Transactions on Consumer Electronics. 40:243-249
A 1024 track stationary head digital recorder has been developed. Although using conventional half inch magnetic tape, this recorder uses new developed components for writing and reading such high number of parallel tracks. We show how this technolog
Autor:
J. P. Castera, J. C. Lehureau, J. M. Coutellier, F. Maurice, C. Maillot, J. Colineau, C. Hanna
Publikováno v:
IEEE 1992 International Conference on Consumer Electronics Digest of Technical Papers.
The concept of stationary head digital recording has been pushed forwards in the audio domain (S-DAT, DCC). However conventional thin film head technology limits the track density to 500 TPI. We have developed a new head design which allows head stac
Publikováno v:
The 16th Annual Meeting of the IEEE Lasers and Electro-Optics Society, 2003. LEOS 2003..
Two methods for reconstructing images are presented: the use of diffractive optical elements displayed on spatial light modulators and the use of digital holography where the holograms are recorded on a camera and reconstructed digitally.
Autor:
J.-P. Castera, J.-C. Lehureau
Publikováno v:
MSS
The following new components have been developed for magnetic tape recording: the matrix writing head, which allows fine track pitch and high integration (1,024 tracks) at reasonable cost, and the Kerr reading head, which takes advantage of optics fo
Autor:
J-C. Lehureau, J. Colineau
Publikováno v:
IEEE International Conference on Consumer Electronics.
Autor:
J. Colineau, J.-C. Lehureau
Publikováno v:
Revue de l'Electricité et de l'Electronique. :45
Publikováno v:
Revue de l'Electricité et de l'Electronique. :31
Autor:
J. Y. Beguin, J. C. Lehureau
Publikováno v:
Journal of the Magnetics Society of Japan. 12:215-218
Autor:
J. P. Castera, J. C. Lehureau
Publikováno v:
International Topical Meeting on Image Detection and Quality.
Magnetic tape has a potential storage density quite comparable to that of optical media. Furthermore it takes advantage of a long history of industrial development leading to low price high quality and availability. Tests on commercial VTR showed tha