# US 8,570,435 B2 · Video processing method and device thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,570,435 B2 - Document ID: US8570435B2 - Status: Granted - Kind: B2 - Application number: 12/572,979 - Filed: 2009-10-02 - Published: 2010-01-28 - Granted: 2013-10-29 - Earliest claimed: 2008-03-10 - Assignees: Realtek Semiconductor Corp. - Applicants: Jin-Sheng Gong; Hsieh Chun-Hsing - Inventors: Jin-Sheng Gong; Hsieh Chun-Hsing - Web page: https://patentgrep.com/patent/US8570435B2 ## CPC - H04N 7/01: Conversion of standards {, e.g. involving analogue television standards or digital television standards processed at pixel level} - G09G 3/20: for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} - G09G 5/10: Intensity circuits - H04N 7/0112: {one of the standards corresponding to a cinematograph film standard} - G09G 2310/061: for resetting or blanking - G09G 2320/0247: Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes - G09G 2320/0261: in the context of movement of objects on the screen or movement of the observer relative to the screen - G09G 2340/0435: Change or adaptation of the frame rate of the video stream - H04N 7/0127: {by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter} - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) ## Abstract A video processing method and a device thereof are described. The method includes the steps as follows. An input video signal is received, in which a single period of the input video signal has a plurality of first input frames and a plurality of second input frames. The input video signal is processed, so as to generate an output video signal, in which a single period of the output video signal has a plurality of first output frames and a plurality of second output frames, and an amount of the first output frames is the same as an amount of the second output frames. A sum of the amount of the first output frames and the amount of second output frames is an integer multiple of a sum of an amount of the first input frames and an amount of the second input frames. ## Claims ### Claim 1 A video processing method, comprising: receiving an input video signal, wherein a single period of the input video signal has input frames of a first type and input frames of a second type, wherein a number of the input frames of the first type does not equal a number of the input frames of the second type; and processing the input video signal, so as to generate an output video signal, wherein a single period of the output video signal has output frames of the first type and output frames of the second type, wherein a number of the output frames of the first type equals a number of the output frames of the second type; wherein a sum of the number of the output frames of the first type and the number of the output frames of the second type is an integer multiple of a sum of the number of the input frames of the first type and the number of the input frames of the second type. ### Claim 2 (depends on 1) The video processing method according to claim 1, wherein a proportion between the number of the input frames of the first type and the number of the input frames of the second type is a first proportion, and the proportion between the number of the output frames of the first type and the number of the output frames of the second type is a second proportion. ### Claim 3 (depends on 2) The video processing method according to claim 2, wherein the input video signal is a 3:2 pull-down image, and the first proportion is 3:2. ### Claim 4 (depends on 3) The video processing method according to claim 3, wherein the second proportion is 5:5. ### Claim 5 (depends on 1) The video processing method according to claim 1, wherein a frequency of the input video signal is selected from a group consisting of 24 Hz, 30 Hz, 60 Hz, and any combination thereof. ### Claim 6 (depends on 5) The video processing method according to claim 5, wherein a frequency of the output video signal is selected from a group consisting of 120 Hz, 180 Hz, 240 Hz, and any combination thereof. ### Claim 7 (depends on 1) The video processing method according to claim 1, wherein the step of processing the input video signal further comprises: adjusting brightness of at least one preset frame in the output video signal, so as to obtain a black frame. ### Claim 8 (depends on 7) The video processing method according to claim 7, wherein the at least one preset frame is located on a conversion between a first output frame and a second output frame. ### Claim 9 (depends on 1) The video processing method according to claim 1, wherein the step of processing the input video signal further comprises: adjusting brightness of at least one preset frame in the output video signal, so as to obtain a gray frame. ### Claim 10 (depends on 9) The video processing method according to claim 9, wherein the at least one preset frame is located on a conversion between a first output frame and a second output frame. ### Claim 11 (depends on 1) The video processing method according to claim 1, wherein the step of processing the input video signal further comprises: setting an average brightness of the output video signal; and adjusting brightness of a plurality of preset frames in the output video signal according to the average brightness, so as to obtain at least one of a black frame or a gray frame. ### Claim 12 A video processing method, comprising: receiving an input video signal, wherein a single period of the input video signal has a plurality of first input frames and a plurality of second input frames; processing the input video signal, so as to generate an output video signal, wherein a single period of the output video signal has a plurality of first output frames and a plurality of second output frames; and adjusting a brightness of a plurality of preset frames in the output video signal according to a preset average brightness level, wherein the preset average brightness level is set by one of a user or by an automatic setting module, so as to obtain at least one of a black frame or a gray frame. ### Claim 13 (depends on 12) The video processing method according to claim 12, wherein each of the plurality of preset frames is located on a conversion between a first output frame and a second output frame. ### Claim 14 (depends on 12) The video processing method according to claim 12, wherein an amount of the first output frames is the same as an amount of the second output frames. ### Claim 15 (depends on 12) The video processing method according to claim 12, wherein a proportion between an amount of the first input frames and an amount of the second input frames is a first proportion, and a proportion between an amount of the first output frames and an amount of the second output frames is a second proportion. ### Claim 16 (depends on 15) The video processing method according to claim 15, wherein the input video signal is a 3:2 pull-down image, and the first proportion is 3:2. ### Claim 17 (depends on 16) The video processing method according to claim 16, wherein the second proportion is 5:5. ### Claim 18 (depends on 12) The video processing method according to claim 12, wherein a frequency of the input video signal is selected from a group consisting of 24 Hz, 30 Hz, 60 Hz, and any combination thereof. ### Claim 19 (depends on 18) The video processing method according to claim 18, wherein a frequency of the output video signal is selected from a group consisting of 120 Hz, 180Hz, 240Hz, and any combination thereof. ### Claim 20 A video processing device, comprising: a receiving module, receiving an input video signal, wherein a single period of the input video signal has input frames of a first type and second input frames of a second type, wherein a number of the input frames of the first type does not equal a number of the input frames of the second type; and a processing module, processing the input video signal, so as to generate an output video signal, wherein a single period of the output video signal has output frames of the first type and output frames of the second type, wherein a number of the output frames of the first type equals a number of the output frames of the second type, and wherein a sum of the number of the output frames of the first type and the number of the output frames of the second type is an integer multiple of a sum of an number of the input frames of the first type and an number of the input frames of the second type. ### Claim 21 (depends on 20) The video processing device according to claim 20, wherein a proportion between the number of the input frames of the first type and the number of the second input frames is a first proportion, and a proportion between the number of the first output frames and the number of the second output frames is a second proportion. ### Claim 22 (depends on 21) The video processing device according to claim 21, wherein the input video signal is a 3:2 pull-down image, and the first proportion is 3:2. ### Claim 23 (depends on 22) The video processing device according to claim 22, wherein the second proportion is 5:5. ### Claim 24 (depends on 20) The video processing device according to claim 20, wherein a frequency of the input video signal is selected from a group consisting of 24 Hz, 30 Hz, 60 Hz, and any combination thereof. ### Claim 25 (depends on 24) The video processing device according to claim 24, wherein a frequency of the output video signal is selected from a group consisting of 120 Hz, 180Hz, 240Hz, and any combination thereof. ### Claim 26 (depends on 20) The video processing device according to claim 20, further comprising: an adjusting module, adjusting brightness of a plurality of preset frames in the output video signal, so as to obtain a black frame. ### Claim 27 (depends on 26) The video processing device according to claim 26, wherein the at least one preset frame is located on a conversion between a first output frame and a second output frame. ### Claim 28 (depends on 20) The video processing device according to claim 20, further comprising: an adjusting module, adjusting brightness of a plurality of preset frames in the output video signal, so as to obtain a gray frame. ### Claim 29 (depends on 28) The video processing device according to claim 28, wherein the at least one preset frame is located on a conversion between a first output frame and a second output frame. ### Claim 30 (depends on 20) The video processing device according to claim 20, further comprising: a setting module, setting an average brightness of the output video signal; and an adjusting module, adjusting brightness of a plurality of preset frames in the output video signal according to the average brightness, so as to obtain at least one of a black frame or a gray frame. ### Claim 31 A video processing device, comprising: a receiving module, receiving an input video signal, wherein a single period of the input video signal has a plurality of first input frames and a plurality of second input frames; a processing module, processing the input video signal, so as to generate an output video signal, wherein a single period of the output video signal has a plurality of first output frames and a plurality of second output frames; a setting module, setting an average brightness of the output video signal; and an adjusting module, adjusting a brightness of a plurality of preset frames, comprising a portion of the output video signal, according to a preset average brightness level, wherein the preset average brightness level is set by one of a user or by an automatic setting module, so as to obtain at least one of a black frame or a gray frame. ### Claim 32 (depends on 31) The video processing device according to claim 31, wherein each of the plurality of preset frames is located on a conversion between a first output frame and a second output frame. ### Claim 33 (depends on 31) The video processing device according to claim 31, wherein a number of the first output frames is the same as a number of the second output frames. ### Claim 34 (depends on 31) The video processing device according to claim 31, wherein a proportion between a number of the first input frames and a number of the second input frames is a first proportion, and a proportion between a number of the first output frames and a number of an second output frames is a second proportion. ### Claim 35 (depends on 34) The video processing device according to claim 34, wherein the input video signal is a 3:2 pull-down image, and the first proportion is 3:2. ### Claim 36 (depends on 35) The video processing device according to claim 35, wherein the second proportion is 5:5. ### Claim 37 (depends on 31) The video processing device according to claim 31, wherein a frequency of the input video signal is selected from a group consisting of 24 Hz, 30 Hz, 60 Hz, and any combination thereof. ### Claim 38 (depends on 35) The video processing device according to claim 35, wherein a frequency of the output video signal is selected from a group consisting of 120 Hz, 180Hz, 240Hz, and any combination thereof.