Variable speed playback of digital video stored in a non-tape media

Claim 1

A method for playback of video data at a speed greater than normal playback speed, comprising the steps of: generating a sequence of output frames including a mixed frame, said mixed frame created by the step of averaging two consecutive frames of data on a pixel by pixel basis, said averaging including: separating each pixel of said consecutive frames into Y, C R , and C B components; averaging said Y components; averaging said C R components; averaging said C B components; and converting said averaged Y, C R , and C B components into a two byte D1 (YC R or YC B ) word; and displaying said sequence of output frames.

Claim 2

A method for playback of video data at a speed greater than normal playback speed, comprising the steps of: generating a sequence of output frames including a mixed frame, said mixed frame created by the step of averaging two consecutive frames of data on a pixel by pixel basis, said averaging including: separating each pixel of said consecutive frames into Y, C R , and C B components; averaging said Y components; averaging said C R components; averaging said C B components; and converting said averaged Y, C R , and C B components into a two byte D1 (YC R or YC B ) word; and displaying said sequence of output frames.

Claim 3

A method for playback of video data at a speed greater than normal playback speed, comprising the steps of: generating a sequence of output frames including a mixed frame, said mixed frame created by the step of averaging two consecutive frames of data on a pixel by pixel basis, said averaging including: separating each pixel of said consecutive frames into R, G, and B components; averaging said R components; averaging said G components; and averaging said B components; and displaying said sequence of output frames.

Claim 4

A method for playback of video data at a speed greater than normal playback speed, comprising the steps of: generating a sequence of output frames including a mixed frame, said mixed frame created by the step of averaging two consecutive frames of data on a pixel by pixel basis, said averaging including: separating each pixel of said consecutive frames into R, G, and B components; averaging said R components; averaging said G components; and averaging said B components; and displaying said sequence of output frames.

Claim 5

A method for playback of video data at a speed greater than normal playback speed, comprising the steps of: looking up a first number of consecutive frames of video data in a look-up table; creating a first mixed frame by averaging said first number of consecutive frames of video data on a pixel by pixel basis, said averaging including: separating each pixel of said first number of consecutive frames of video data into Y, C R , and C B components; averaging said Y components; averaging said C R components; averaging said C B components; converting said averaged Y, C R , and C B components into a two byte D1 (YC R or YC B ) word; looking up a second number of consecutive frames of video data in said look-up table; creating a second mixed frame by averaging said second number of consecutive frames of video data on a pixel by pixel basis, said averaging including: separating each pixel of said second number of consecutive frames of video data into Y, C R , and C B components; averaging said Y components; averaging said C R components; averaging said C B components; converting said averaged Y, C R , and C B components into a two byte D1 (YC R or YC B ) word; generating a sequence of output frames including said first and second mixed frames; and displaying said sequence of output frames at a frame rate equal to a normal playback speed frame rate.

Claim 6

A method for playback of video data at a speed greater than normal playback speed, comprising the steps of: looking up a first number of consecutive frames of video data in a look-up table; creating a first mixed frame by averaging said first number of consecutive frames of video data on a pixel by pixel basis, said averaging including: separating each pixel of said first number of consecutive frames of video data into Y, C R , and C B components; averaging said Y components; averaging said C R components; averaging said C B components; converting said averaged Y, C R , and C B components into a two byte D1 (YC R or YC B ) word; looking up a second number of consecutive frames of video data in said look-up table; creating a second mixed frame by averaging said second number of consecutive frames of video data on a pixel by pixel basis, said averaging including: separating each pixel of said second number of consecutive frames of video data into Y, C R , and C B components; averaging said Y components; averaging said C R components; averaging said C B components; converting said averaged Y, C R , and C B components into a two byte D1 (YC R or YC B ) word; generating a sequence of output frames including said first and second mixed frames; and displaying said sequence of output frames at a frame rate equal to a normal playback speed frame rate.

Claim 7

A method for playback of video data at a speed greater than normal playback speed, comprising the steps of: retrieving a plurality of frames of said video data from a storage device; and generating a sequence of output frames including a mixed frame, said mixed frame created by the step of averaging two or more frames of video data on a pixel by pixel basis, said averaging including: separating each pixel of said two or more frames into Y, C R , and C B components; averaging said Y components; averaging said C R components; and averaging said C B components.

Claim 8

A method for playback of video data at a speed greater than normal playback speed, comprising the steps of: retrieving a plurality of frames of said video data from a storage device; and generating a sequence of output frames including a mixed frame, said mixed frame created by the step of averaging two or more frames of video data on a pixel by pixel basis, said averaging including: separating each pixel of said two or more frames into Y, C R , and C B components; averaging said Y components; averaging said C R components; and averaging said C B components.

Claim 9

A method for playback of video data at a speed greater than normal playback speed, comprising the steps of: retrieving a plurality of frames of said video data from a storage device; and generating a sequence of output frames including a mixed frame, said mixed frame created by the step of averaging two or more frames of video data on a pixel by pixel basis, said averaging including: separating each pixel of said two or more frames into R, G, and B components; averaging said R components; averaging said G components; and averaging said B components.

Claim 10

A method for playback of video data at a speed greater than normal playback speed, comprising the steps of: retrieving a plurality of frames of said video data from a storage device; and generating a sequence of output frames including a mixed frame, said mixed frame created by the step of averaging two or more frames of video data on a pixel by pixel basis, said averaging including: separating each pixel of said two or more frames into R, G, and B components; averaging said R components; averaging said G components; and averaging said B components.

Claim 11

A method for high speed shuttle playback of video data, comprising the steps of: retrieving a plurality of frames of said video data from a storage device; generating a sequence of output frames including a plurality of mixed frames, said mixed frames created by the step of averaging non-consecutive frames of video data on a pixel by pixel basis, said averaging including: separating each pixel of said non-consecutive frames into Y, C R , and C B components; averaging said Y components; averaging said C R components; and averaging said C B components; and each of said mixed frames including a component of a previous output frame.

Claim 12

A method for high speed shuttle playback of video data, comprising the steps of: retrieving a plurality of frames of said video data from a storage device; generating a sequence of output frames including a plurality of mixed frames, said mixed frames created by the step of averaging non-consecutive frames of video data on a pixel by pixel basis, said averaging including: separating each pixel of said non-consecutive frames into Y, C R , and C B components; averaging said Y components; averaging said C R components; and averaging said C B components; and each of said mixed frames including a component of a previous output frame.

Claim 13

A method for high speed shuttle playback of video data, comprising the steps of: retrieving a plurality of frames of said video data from a storage device; generating a sequence of output frames including a plurality of mixed frames, said mixed frames created by the step of averaging non-consecutive frames of video data on a pixel by pixel basis, said averaging including: separating each pixel of said non-consecutive frames into R, G and B components; averaging said R components; averaging said G components; and averaging said B components; and each of said mixed frames including a component of a previous output frame.

Claim 14

A method for high speed shuttle playback of video data, comprising the steps of: retrieving a plurality of frames of said video data from a storage device; generating a sequence of output frames including a plurality of mixed frames, said mixed frames created by the step of averaging non-consecutive frames of video data on a pixel by pixel basis, said averaging including: separating each pixel of said non-consecutive frames into R, G and B components; averaging said R components; averaging said G components; and averaging said B components; and each of said mixed frames including a component of a previous output frame.

Claim 15

An apparatus for high speed playback of digital video data, comprising in combination: mass storage means for storing frames of said video data; input means for selecting a playback speed; means for retrieving said frames of video data; generating means for generating a sequence of output frames including a mixed frame, said mixed frame having a component of at least two frames of said video data, said generating means including: means for separating each pixel of said at least two frames into Y, C R , and C B components; averaging means for: averaging said Y components; averaging said C R components; averaging said C B components; and converting means for converting said averaged Y, C R , and C B components into a two byte D1 (YC R or YC B ) word; and display means for displaying said sequence of output frames.

Claim 16

An apparatus for high speed playback of digital video data, comprising in combination: mass storage means for storing frames of said video data; input means for selecting a playback speed; means for retrieving said frames of video data; generating means for generating a sequence of output frames including a mixed frame, said mixed frame having a component of at least two frames of said video data, said generating means including: means for separating each pixel of said at least two frames into Y, C R , and C B components; averaging means for: averaging said Y components; averaging said C R components; averaging said C B components; and converting means for converting said averaged Y, C R , and C B components into a two byte D1 (YC R or YC B ) word; and display means for displaying said sequence of output frames.

Claim 17

An apparatus for high speed playback of digital video data, comprising in combination: mass storage means for storing frames of said video data; input means for selecting a playback speed; means for retrieving said frames of video data; generating means for generating a sequence of output frames including a mixed frame, said mixed frame having a component of at least two frames of said video data, said generating means including: means for separating each pixel of said at least two frames into R, G, and B components; averaging means for: averaging said R components; averaging said G components; averaging said B components; and converting means for converting said averaged R, G, and B components into a standard video format for display; and display means for displaying said sequence of output frames.

Claim 18

An apparatus for high speed playback of digital video data, comprising in combination: mass storage means for storing frames of said video data; input means for selecting a playback speed; means for retrieving said frames of video data; generating means for generating a sequence of output frames including a mixed frame, said mixed frame having a component of at least two frames of said video data, said generating means including: means for separating each pixel of said at least two frames into R, G, and B components; averaging means for: averaging said R components; averaging said G components; averaging said B components; and converting means for converting said averaged R, G, and B components into a standard video format for display; and display means for displaying said sequence of output frames.

Claim 19

An apparatus for high speed playback of digital video data, comprising in combination: mass storage means for storing compressed frames of said video data; buffer means for buffering said frames stored in said mass storage means; input means for selecting a playback speed; means for retrieving said frames stored in said mass storage means via said buffer means; decompressing means for decompressing retrieved frames; means for separating each pixel of decompressed frames into Y, C R , and C B components; an arithmetic logic unit for: averaging said Y components; averaging said C R components; averaging said C B components; output memory means for storing said averaged Y, C R and C B components as output frames; and display means for displaying a sequence of output frames.

Claim 20

An apparatus for high speed playback of digital video data, comprising in combination: mass storage means for storing compressed frames of said video data; buffer means for buffering said frames stored in said mass storage means; input means for selecting a playback speed; means for retrieving said frames stored in said mass storage means via said buffer means; decompressing means for decompressing retrieved frames; means for separating each pixel of decompressed frames into Y, C R , and C B components; an arithmetic logic unit for: averaging said Y components; averaging said C R components; averaging said C B components; output memory means for storing said averaged Y, C R and C B components as output frames; and display means for displaying a sequence of output frames.

Claim 21

An apparatus for high speed playback of digital video data, comprising in combination: mass storage means for storing compressed frames of said video data; buffer means for buffering said frames stored in said mass storage means; input means for selecting a playback speed; means for retrieving said frames stored in said mass storage means via said buffer means; decompressing means for decompressing retrieved frames; means for separating each pixel of decompressed frames into R, G and B components; an arithmetic logic unit for: averaging said R components; averaging said G components; averaging said B components; output memory means for storing said averaged R G and B components as output frames; and display means for displaying a sequence of output frames.

Claim 22

An apparatus for high speed playback of digital video data, comprising in combination: mass storage means for storing compressed frames of said video data; buffer means for buffering said frames stored in said mass storage means; input means for selecting a playback speed; means for retrieving said frames stored in said mass storage means via said buffer means; decompressing means for decompressing retrieved frames; means for separating each pixel of decompressed frames into R, G and B components; an arithmetic logic unit for: averaging said R components; averaging said G components; averaging said B components; output memory means for storing said averaged R G and B components as output frames; and display means for displaying a sequence of output frames.