1. A method comprising:
receiving, at one or more computer systems associated with a first video provider, a home-video digital master package generated by a second video provider based on content digitally mastered according to at least one digital cinema video format such that the home-video digital master package packages together a plurality of digital images color graded to map a transfer curve of color expressed in the content to that of at least one consumer high-definition video format while preserving color space data of the content and encoded with a compression encoding substantially independent of integer pixel translation of the plurality of digital images;
performing, with one or more processors associated with the one or more computer systems, gamut matching on the plurality of digital images packaged in the home-video digital master package to remap the color of the plurality of digital images expressed in the at least one consumer high-definition video format to that of at least one consumer high-definition target device;
generating, with the one or more processors associated with the one or more computer systems, video data configured for playback on the at least one consumer high-definition target device based on results of the gamut matching performed on the plurality of digital images packaged in the home-video digital master package; and
store the generated video data in a storage device associated with the one or more computer systems.
2. The method of claim 1 wherein performing, with the one or more processors associated with the one or more computer systems, the gamut matching on the plurality of digital images packaged in the home-video digital master package comprises performing smooth gamut remapping or non-linear gamut remapping.
3. The method of claim 1 wherein performing, with the one or more processors associated with the one or more computer systems, the gamut matching on the plurality of digital images packaged in the home-video digital master package comprises performing gamut matching to fit the color space of the plurality of digital images within a desired gamut of the at least one consumer high-definition target device.
4. The method of claim 1 wherein the compression encoding excludes a block-based encoding or comprises a wavelet encoding, Joint Photographic Experts Group 2000 (JPEG2000) encoding, or a lossless encoding.
5. The method of claim 1 further comprising resizing, with the one or more processors associated with the one or more computer systems, each of the plurality of images from a first resolution associated with the home-video digital master package to a second resolution associated with the at least one consumer high-definition target device with reduced pixel artifacts.
6. The method of claim 1 wherein to map the transfer curve of the color expressed in the content to that of the at least one consumer high-definition video format while preserving color space data of the content comprises color grading to a color space defined by International Telecommunication Union Radio communication Sector (ITU-R) BT.709 or ITU-R BT.601.
7. The method of claim 1 wherein to map the transfer curve of the color expressed in the content to that of the at least one consumer high-definition video format while preserving color space data of the content comprises color grading from a color space associated with film media, a color space associated with digital cinema, a device independent color space, an unambiguous color space, an x-prime y-prime z-prime (X\u2032Y\u2032Z\u2032) color space, or Digital Cinema Distribution Master (DCDM) encoding.
8. The method of claim 1 wherein the at least one consumer high-definition target device is selected from a group consisting of: a DVD player, a Blu-Ray disk player, an HD-DVD disk player, a computer, a CD player, a hand-held device, a telephone.
9. The method of claim 1 wherein each step is implemented by a system comprising the one or more computer systems according to a set of instructions stored on a non-transitory memory in communication with the one or more processors associated with the one or more computer systems.
10. The method of claim 1 wherein each step is implemented by the one or more computer systems according to code stored on a non-transitory computer-readable media that is executed by the one or more processors to configure the processor to perform the step.
11. The method of claim 1 wherein the compression encoding excludes a block-based encoding or comprises a wavelet encoding, Joint Photographic Experts Group 2000 (JPEG2000) encoding, or a lossless encoding.
12. The method of claim 1 further comprising
resizing, with the one or more processors associated with the one or more computer systems, each of the plurality of images from a first resolution associated with the content to a second resolution associated with the home-video digital master package with reduced pixel artifacts.
13. The method of claim 1 wherein generating, with the one or more processors associated with the one or more computer systems, the plurality of digital images comprises color grading to a color space defined by International Telecommunication Union Radio communication Sector (ITU-R) BT.709 or ITU-R BT.601.
14. The method of claim 1 wherein generating, with the one or more processors associated with the one or more computer systems, the plurality of digital images comprises color grading from a color space associated with film media, a color space associated with digital cinema, a device independent color space, an unambiguous color space, an x-prime y-prime z-prime (X\u2032Y\u2032Z\u2032) color space, or Digital Cinema Distribution Master (DCDM) encoding.
15. A method comprising:
receiving, at one or more computer systems associated with a first content provider, content digitally mastered by a second content provider according to at least one digital cinema video format;
generating, with one or more processors associated with the one or more computer systems, a plurality of digital images color graded to map a transfer curve of color expressed in the content to that of at least one consumer high-definition video format while preserving color space data of the content such that gamut matching performed on the plurality of digital images remaps the color of the plurality of digital images expressed in the at least one consumer high-definition video format to that of at least one consumer high-definition target device;
generating, with the one or more processors associated with the one or more computer systems, a home-video digital master package that encodes the plurality of digital images with a compression encoding substantially independent of integer pixel translation of the plurality of digital images; and
storing the home-video digital master package in a storage device associated with the one or more computer systems such that video data generated based on the home-video digital master package is configured for playback on the at least one target consumer high-definition device in response to results of the gamut matching performed on the plurality of digital images obtained from the home-video digital master package.
16. The method of claim 15 wherein generating, with the one or more processors associated with the one or more computer systems, the home-video digital master package comprises packaging the plurality of digital images such that performing the gamut matching on the plurality of digital images packaged in the home-video digital master package comprises performing smooth gamut remapping or non-linear gamut remapping.
17. The method of claim 15 wherein generating, with the one or more processors associated with the one or more computer systems, the home-video digital master package comprises packaging the plurality of digital images such that performing the gamut matching allows fitting the color space of the plurality of digital images within a desired gamut of the at least one target consumer high-definition device.
18. A method for distributing digital video data, the method comprising:
receiving, at one or more computer systems associated with a first video service provider, an encoded image data package that includes a first plurality of digital images at a first resolution in first digital data compressed with a compression encoding substantially independent of integer pixel translation of the first plurality of digital images, the encoded image data package generated by a second video service provider based on second digital data that includes a second plurality of digital images at a second image resolution, wherein each digital image in the second plurality of digital images is encoded in a first color space configured for playback on cinema video equipment, wherein each digital image in the first plurality of digital images is encoded in a second color space configured for playback on high-definition consumer video equipment;
generating, with one or more processors associated with the one or more computer systems, third digital data comprising a third plurality of digital images at a third image resolution based on the encoded image data package, wherein each digital image in the third plurality of digital images in the third digital data is color-graded in a color space targeted to at least one high-definition consumer device according to color grading input data in the encoded image data package preserving the second color space;
configuring, with the one or more processors associated with the one or more computer systems, the third digital data for distribution and playback on the at least one targeted high-definition consumer device; and
storing the configured third digital data in a storage device associated with the one or more computer systems.
19. The method of claim 18 further comprising:
reducing pixel artifacts on the at least one targeted high-definition consumer device in response to resizing, with the one or more processors associated with the one or more computer systems, each of the first plurality of digital images from the first resolution to the third resolution.
20. The method of claim 18 further comprising:
performing, with the one or more processors associated with the one or more computer systems, gamut matching on the first plurality of digital images to remap color of the first plurality of digital images expressed to that the of at least one targeted high-definition consumer device.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A magnetic disk apparatus comprising:
a spindle motor for rotating a magnetic disk;
first means for selectively generating either a first pulse-train signal or a second pulse-train signal which differs from the first pulse-train signal in pulse frequency; and
second means for, when the first means generates the first pulse-train signal, controlling the spindle motor to rotate at a first rotational speed in response to the first pulse-train signal, and for, when the first means generates the second pulse-train signal, controlling the spindle motor to rotate at a second rotational speed in response to the second pulse-train signal, the second rotational speed differing from the first rotational speed.
2. A magnetic disk apparatus as recited in claim 1, further comprising:
third means for reading a signal from the magnetic disk;
fourth means for discriminating data from the signal read by the third means;
fifth means for determining whether or not the fourth means normally discriminates the data from the signal read by the third means; and
sixth means for, in cases where the fifth means determines that the fourth means normally discriminates the data, controlling the first means to unchange one of the first and second pulse-train signals which is currently generated by the first means, and for, in cases where the fifth means determines that the fourth means does not normally discriminate the data, controlling the first means to change one of the first and second pulse-train signals which is currently generated by the first means to the other of the first and second pulse-train signals.
3. A magnetic disk apparatus as recited in claim 1, wherein the first means comprises means for generating a fixed-level signal in response to a motor stop signal, and the second means comprises means for, when the first means generates the fixed-level signal, stopping the spindle motor in response to the fixed-level signal.
4. A magnetic disk apparatus comprising:
a spindle motor for rotating a magnetic disk;
first means associated with the spindle motor for generating a first signal having a period which decreases as a rotational speed of the motor increases;
second means for generating a second signal having a train of pulses, wherein a pulse frequency of the second signal is initially equal to a first frequency;
third means for counting pulses in the second signal during every time interval corresponding to the period of the first signal, and generating a third signal depending on a total number of the counted pulses for every time interval corresponding to the period of the first signal;
fourth means for generating a fourth signal representing a deviation of the third signal generated by the third means from a fifth signal being a reference signal;
fifth means for controlling the rotational speed of the spindle motor in response to the fourth signal generated by the fourth means to nullify the deviation of the third signal from the reference signal;
sixth means for reading a sixth signal from the magnetic disk;
seventh means for detecting actual data in the sixth signal read by the sixth means;
eighth means for determining whether or not the seventh means successfully detects the actual data;
ninth means for, when the eighth means determines that the seventh means successfully detects the actual data, maintaining the pulse frequency of the second signal at the first frequency; and
tenth means for, when the eighth means determines that the seventh means does not successfully detect the actual data, changing the pulse frequency of the second signal from the first frequency to a second frequency different from the first frequency to change the rotational speed of the spindle motor which is controlled by the fifth means.