baber/WOPTO huggingface dataset:
Patent KR-20000032882-A (KR)
Title: Apparatus and method for storing image data for scan convert of image detector
Inventor: LEE MIN GYU
IPC: G11B20/04
Filed: 1998-11-18
Abstract: PURPOSE: An image data storing apparatus and method is to process effectively image data which enter through a linear image detector by processor. CONSTITUTION: A line memory(820) stores a pixel data detected by a horizontal scan of image detector for each vertical line. An address/control signal generating unit(880) reads a vertical pixel data stored in the line memory unit and generates an address(884) and a control signal(882,883) to store it in order of horizontal pixel of the pixel data. An image memory unit stores the vertical pixel data in order of horizontal pixel by the address and the control signals generated from the address/control signal generating unit. The line memory stores the vertical pixel data over at least two line. The address/control signal generating unit comprises a memory device including a dual port RAM.
Patent KR-19990014598-A (KR)
Title: 균열 추종성 건물 단열용 수성도료 조성물
Filed: 1998-11-26
Abstract: 본 발명은  단열(斷熱) 성능과 탄성(彈性)을 가진 수성계 도료로서 건축물에 직접 미장 또는 도포하는 기존의 단열재가 건물자체의 균열에 적응하지 못하여  균열이 발생하고 균열부에 열손실이 발생함과 동시에 결로 발생의 원인을 제공하여  지하 창고등에 보관중인 물품이나 시설물이 습기에 피해를 보고 있는 문제점을 해결하기 위하여, 도막특성이 탄성 및 신장성이 높은 특수 아크릴 에멀젼수지를 사용하고 안료는 열전도율이 낮은 프라스틱계 PVC 파우더와 시리카, 산화아연 등을 적절하게 구성하여 도료의 도막으로서는 획기적인 0.10 Kcal/mh℃ 의 열전도율로 단열효과가 우수하다. 
     본 발명품으로 건축물 벽면 또는 천정에 3mm두께로 도포하여 30%정도 단열 시공을 하면 피도면과 대기의 온도 차이가 좁혀져 결로 발생을 억제할수 있으며 결로 발생으로 인한 습기 피해를 방지하고, 단열 효과에 의하여 에너지를 절감할 수 있다.  특히 수성계 이므로 작업시 화재 위험이나 유해가스의 위험이 없고 시공이 용이하다. 
     본 발명품은 단열 효과가 우수하므로 결로 발생으로 습기의 피해가 많은곳, 즉 지하통신시설, 탄약등 주요물품 보관시설, 냉동시설, 건물지하실등에 시공시 우수한 효과를 얻을 수 있다.
Patent KR-20000034416-A (KR)
Title: Winching system of crane having emergency stopping device
Inventor: PARK MYEONG JUN
IPC: B66C7/16
Filed: 1998-11-30
Abstract: PURPOSE: A winching system of a crane having an emergency stopping device is provided to prevent a falling accident of a load due to a slip of a drum or a variation of the synchronous speeds of a motor and a drum by stopping the winching system after quick and accurate perceiving of the slip and the variation. CONSTITUTION: A winching system of a crane(1) incorporating therein a winching motor(10) for providing winching force to a wire rope for pulling up loads, a speed reducer(20) for reducing or changing the speed of the motor(10), a drum(30) for winching a wire rope thereon, a braker(40) for stopping the rotation of the drum(30) and a controlling panel(50) has an emergency stopping device(100) comprising a motor rotation perceiving part(110) mounted on the motor(10) for perceiving the rotational direction and speed thereof, a drum rotation perceiving part(120) mounted on the drum(30) for perceiving the rotational direction and speed thereof, a comparing part(130) for comparing rotational directions of a driving directions, the motor(10) and the drum(30) and for comparing a speed ratio according to a reduction gear ratio of the motor(10) and the drum(30) with permissible error range and a controlling part(140) for controlling to stop the drum(30) when the rotational directions according to the comparing part(130) are different from each other or the speed ratios escape from the permissible error range, thereby prevents a falling accident of a load.
Patent KR-20000038365-A (KR)
Title: Optical pickup separated optical resource module
Inventor: PARK WON JAE
IPC: G11B7/08
Filed: 1998-12-03
Abstract: PURPOSE: An optical pickup separated an optical resource module is provided to be light and to have a larger free degree in a design of a device by minimizing a restriction of space. CONSTITUTION: A diffused light is projected from an HPM(hologram pickup module)(134b) and the diffused light is reflected by changing an optical path to a direction of a prism(134a) after projecting in a prism(135b) located in front of the HPM(134b). The projected diffused light is reflected by changing the optical path to a direction of a collimator lens(137) after projecting in a left prism(134) by passing every prism(135a). The diffused light changed the optical path is outputted by converting to a horizontal light by the collimator lens(137). Thereby it is always outputted the horizontal light in a projection module of horizontal light(130). An outputted horizontal light is inputted in a total mirror of an optical pickup actuator fixed on an optical pickup base by crossing a deck and is collected in an optical disc by passing an objective lens after changing the optical path to a direction of a data recording face in the optical disc by the total mirror. An optical resource collected in the recording face of data is concentrated in an embedded PDIC(photo detector I.C.) after returning to the HMPs(134,134a,134b) during stepping the process by reflecting according to a pit. Thereby a detection of a recorded signal and a servo process are able to be proceeded.
Patent KR-20000038458-A (KR)
Title: Method for changing modes of camcorders
Inventor: MIN BYUNG SEOK
IPC: H04N5/225
Filed: 1998-12-07
Abstract: PURPOSE: A method for changing modes of camcorders is provided to change the mode of the camcorder from a camera mode to a VCR(video cassette recorder) mode without independent key manipulation. CONSTITUTION: A method for changing modes of camcorders includes first and second steps. At the first step, the mode of the camcorder is changed by a camera/VCR key manipulation(208) or the mode of the camcorder is directly changed by setting a camera quick VCR(211) in a menu. At the second step, the camera quick VCR in the menu is set(212) to change the camcorder operating in the camera mode to the VCR mode. The first step further includes a step of processing the tape in the VCR mode(212).
Patent KR-19990045708-A (KR)
Title: 열영상 검출용 초전소자 및 그 제조방법
Filed: 1998-12-19
Abstract: 본 발명은 알루미늄기판 상에 양극산화법에 의해 열차폐층인 알루미나층이 형성되고, 알루미나층 상에 하부전극과 펄스레이저증착법에 의해 PSN-PZT계 초전층 및 상부전극이 형성된 열영상 검출용 초전소자를 개시한다. 
     따라서, 본 발명은 저가의 알루미늄 기판을 사용하고 또한 비용이 적게 소요되는 양극산화법에 의해 알루미나층을 제조하므로 제조비용의 절감을 이룩할 수 있다. 또한, 알루미나층은 알루미늄기판과의 결합상태가 양호하고, 열용량이 작으며 알루미늄기판과의 열적 고립이 양호하여 열영상 검출용 초전소자의 검지능이 우수하고, 초전소자의 주된 오동작 원인인 열적 잡음(thermal noise)이 적다. 
     그리고, 초전층이 펄스레이저증착법에 의해 증착되므로 초전소자의 검지특성과 응답성이 우수하고,  알루미늄기판의 후면 중앙부가 경사 식각되어 소자의 열적 고립이 가능하므로 열적 잡음에 대한 영향이 줄어들고 열적 특성이 향상된다.
Patent KR-20000040821-A (KR)
Title: High speed interpolator of digital decoder
Inventor: PARK HWAK DONG
IPC: H04N9/64
Filed: 1998-12-19
Abstract: PURPOSE: A high speed interpolator of digital decoder is provided to respond to high speed system clock by storing the output from a ROM. CONSTITUTION: A high speed interpolator of digital decoder includes an address generator, a memory, a delay, a multiplier, and an adder. The interpolator recontrols the sampled signal in response to a symbol timing. The address generator receives decimal values between 0 and 1 and shifts down the number to generate a memory address. The memory stores a result of prior process, and receives the memory address from the address generator to read the address. The delay delays the input data for a predetermined period of time and outputs the delayed input. The multiplier multiplies the result of manipulation from the memory by the delayed input data from the. The adder adds the multiplied signal from the multiplier to generate an interpolant.
Patent KR-20000040856-A (KR)
Title: Method for transmitting and receiving originating number of mobile communication terminal
Inventor: KIM HYON JOONG
IPC: H04B7/26
Filed: 1998-12-17
Abstract: PURPOSE: A method for transmitting and receiving the originating number of a mobile communication terminal is provided to transmit an originating number with a call connection signal using an incoming side terminal when the key input according to paging request is detected. CONSTITUTION: If a user turns on the power of a mobile communication terminal(ST11), a microprocessor increases or decreases the demodulation frequency of a RF signaling part sequently, and searches radio carriers received through an antenna(ST12,ST13). The microprocessor receives broadcasting channel(BCCH) from a base station(ST14), and reads its international mobile subscriber identity(ST15). The microprocessor judges whether there is a key input according to paging request(ST16). The user generates a call access signal and reads an originating number registered previously in a subscriber identity module(S17), and transmits a combination of the call access signal and the originating number to the associated base station through the RF signaling part(ST18).
Patent KR-19990030390-A (KR)
Title: 수질의 다성분 연속 오염측정장치
IPC: G01N21/00
Filed: 1998-12-22
Abstract: 오수를 자유 낙하시키고, 자유낙하하는 오수에 광선을 조사한 후, 오수를 통과한 광선의 각각의 파장별 광량을 측정하여 오수의 오염도를 측정하는 수질의 다성분 연속 오염 측정장치가 개시되어 있다. 광선을 오수에 조사하여 오수를 통과한 광선의 광량을 이용하여 오염정도를 측정하는 장치에 있어서, 외부에서 오수 또는 유체가 일정한 압력상태에서 측정 장치로 유입되도록 하는 자동압력 조절부, 유입된 오수가 자유낙하되도록 하는 본체부, 오수에 광선을 조사하는 조사부, 오수를 통과한 광선을 수광하여 수광된 광선의 광량에 해당하는 신호를 출력하는 수광부, 상기 조사부와 수광부에 열풍을 공급하여 장치내의 습기를 제거하는 에어 공급부, 상기 조사부와 수광부에서 출력되는 신호와 기준값을 비교하여 해당하는 신호를 출력하는 제어부로 구성되는 본 발명은 오수의 오염정도를 측정함에 있어 오랜 시간 측정 장치를 사용하여도 측정 장치의 관리가 수월하게 되고, 수질의 다성분 오염 정도를 빠른 시간내에 측정하는 효과가 있다.
Patent KR-20000041605-A (KR)
Title: Non-slip glaze composition of earthen roof-tile and preparation of earthenware using the same
Inventor: PARK HEON CHUL
IPC: C03C8/00
Filed: 1998-12-23
Abstract: PURPOSE: A non-slip glaze composition of earthen roof-tile and preparation of earthenware using the same are provided to give the various effects as to non-slip and sliding protection, and many additional benefits such as protection from falling accident and safety accident improvement, in addition to dramatical reduction of a variety of defectives caused by some discordance between a first glaze and a second glaze. CONSTITUTION: A non-slip glaze composition of earthen roof-tile is prepared by mixing high compatible frit, low compatible frit, feldspar, lime, clay, carboxymethylcellulose, bentonite and pigment, wetly milling it, and adding sands into the resultant to desired composition. The composition is characterized by comprising 33 wt% of high compatible frits, 29 wt% of low compatible frits, 24 wt% of feldspar, 4.5 wt% of limes, 5 wt% of clays, 0.3 wt% of carboxymethylcellulose, 0.3 wt% of bentonites and 4 to 10 wt% of pigments.
Patent KR-19990063504-A (KR)
Title: 화상 형성 장치
IPC: G03G15/02
Filed: 1998-12-26
Abstract: 화상 형성 장치는 화상 보유 부재 및 화상 보유 부재를 대전시키기 위해 화상 보유 부재에 접촉 가능한 대전 부재를 포함하며, 화상 영역이 될 상기 화상 보유 부재의 영역에 대한 상기 대전 부재의 대전 동작을 개시하기 전의 기간 및 상기 화상 영역에 대한 대전 동작을 완료한 후의 기간 중에서 적어도 하나의 기간 내에 클리닝 동작이 가능하고, 상기 클리닝 동작의 클리닝 조건이 적어도 하나의 작업에서의 연속 화상 형성 동작의 수에 따라서 변한다.
Patent KR-19990063541-A (KR)
Title: 오류 정정 부호화 방법 및 장치, 데이터 전송 방법, 수신 방법 및 장치
IPC: H04N19/134
Filed: 1998-12-29
Abstract: 입력 데이터의 우선순위 정보에 따라 높은 우선순위를 갖는 입력 데이터를 확실히 전송할 수 있는 부호화-다중화 장치 및 우선순위 정보에 따라 부호화-다중화 장치로부터 전송된 데이터를 복호화하는 수신기가 실현될 수 있다.  외부 부호화부(33)에서는 고정 길이의 패킷(packet)을 발생하기 위해 입력 데이터의 우선순위 정보에 따라 오류 정정 기능을 갖는 오류 정정 코드가 입력 데이터에 부가되고, 또한 상기 우선순위 정보는 고정 길이의 패킷의 소정의 위치에 기록된다.  이어서, 다수의 패킷은 다중화되어 전송된다.  수신기는 우선순위 정보를 근거로 복호화를 실행하기 위해, 다수의 패킷으로부터 원하는 프로그램의 패킷만을 추출하고, 추출된 패킷으로부터 우선순위 정보를 추출한다.
Patent KR-20000044628-A (KR)
Title: Method of forming metal interconnection of ferroelectric memory device
Inventor: SEON JUN HYUB
IPC: H01L27/10
Filed: 1998-12-30
Abstract: PURPOSE: A method of forming a metal interconnection is provided to reduce a charge accumulation damage generated at a plasma etch by using a pulsed plasma at etching a metal film. CONSTITUTION: In a method of forming a metal interconnection comprises the step of etching a metal film consisting of a capacitor electrode by use of a pulsed plasma which is generated from a plasma etch apparatus. The plasma etch apparatus comprises a chuck(11), a support(12), gas inflow tubes(21,22), a coolant inflow tube(23), a matching network(31) for adjusting a bias power applied to a wafer, an RF bias power generator(41) connected to the matching network, and a pulse generator(50) connected to an RF source power generator(42) so as to adjust a pulsed plasma.
Patent KR-20000045067-A (KR)
Title: Mixing and supplying apparatus of fine particles utilizing fluidized bed
Inventor: HWANG JAE DONG
IPC: B05B7/04
Filed: 1998-12-30
Abstract: PURPOSE: A apparatus is provided which can uniformly mix and supply more than two kinds of fine particles not using a special mixing apparatus. CONSTITUTION: A apparatus comprises a quantitative controlling means(12a, 12b) to supply the fine particles from storage tanks(11a, 11b), inlets(20a, 20b) of the fine particles supplied from the storage tanks(11a, 11b), a fluidized chamber(13) having outlet of the fine particles(17) installed at a height of fluidized bed(16), a wind box(14) to supply a plenty of fluidized gas to form a face of the fluidized bed(18) through a penetration hole to the fluidized chamber(13), which is installed on the bottom of the fluidized chamber(13), and penetrated to the fluidized chamber(13) by plural through holes formed on dispersed plate(15).
Patent KR-20000045881-A (KR)
Title: Method for forming device isolation layer of trench structure of semiconductor device
Inventor: PARK GEUN JU
IPC: H01L21/76
Filed: 1998-12-30
Abstract: PURPOSE: A method for forming a device isolation layer of a trench structure of a semiconductor device is provided to adjust the ratio of chemicals such as C<SB POS="POST">2</SB>F<SB POS="POST">6</SB> and HBr to prevent characteristic degradation due to electric field. CONSTITUTION: A method for forming a device isolation layer of a trench structure of a semiconductor device includes following steps. At the first step, a pad oxide layer(12) and a nitride layer(14) are accumulated sequentially. At the second step, a photoresist pattern(16) is formed on the pad oxide layer and the nitride layer by using a photolithography operation using a device isolation mask. At the second step, the nitride layer as well as the pad oxide layer are patterned so as to align the photoresist pattern. At the third step, a polymer is formed on the side of the nitride layer and the pad oxide layer using an etching process using C<SB POS="POST">2</SB>F<SB POS="POST">6</SB> and HBr gases. At the forth step, a trench is formed under the substrate by using a dry etching process.
Patent KR-20000046001-A (KR)
Title: Recovery invertor apparatus of railroad vehicle
Inventor: PARK CHEA WOON
IPC: B61C17/00
Filed: 1998-12-31
Abstract: PURPOSE: A recovery invertor apparatus of railroad vehicle is provided to convert DC power supply generated from an electromotive of a railroad vehicle to three phase AC power supply and then recover to an electric power supply line, so that energy utilization efficiency is increased. CONSTITUTION: A recovery invertor apparatus of railroad vehicle comprises an input electric power sensing device(41) for detecting DC power of an electromotive; an input electric power contact breaker(42) for selectively cutting off input electric power from the electromotive; an invertor(43) for converting DC power input from the input electric power contact breaker(42) to three phase AC power; an output electric power sensing device(44) for detecting electric power output from the invertor(43); and a control unit(45) for automatically controlling the operations of the above devices(41, 42, 43, 44), which converts recovery breaking DC power of electromotive to three phase AC power and then recovers to an electric power supply line.
Patent KR-20000046390-A (KR)
Title: Operation, administration and maintenance data communication apparatus of pulse code modulation channel apparatus in fiber loop carrier system
Inventor: KIM WON KYONG
IPC: H04B10/07
Filed: 1998-12-31
Abstract: PURPOSE: An OAM(Operation, Administration and Maintenance) data communication apparatus of the pulse code modulation channel apparatus in the fiber loop carrier system is provided to transmit and receive OAM data with a remote terminal side, as used in the pulse code modulation channel apparatus in the fiber loop carrier system. CONSTITUTION: A timing generation unit(410) generates a timing pulse to recognize communication data. A communication bit detection and insertion unit(420) extracts communication data from an E1 frame and inserts the communication data received from a data processing unit(430) into the E1 frame. The data processing unit(430) extracts pure OAM data from 5 nos. bits transmitted from the communication bit detection and insertion unit(420) and transfers the OAM data to a main control unit(440). The main control unit(440), receiving the pure OAM data outputted from the data processing unit(430), executes an associated OAM processing.
Patent KR-20000046604-A (KR)
Title: Earth device
Inventor: HAN SANG IK
IPC: H01R13/655
Filed: 1998-12-31
Abstract: PURPOSE: An earth device is provided to pull down high electrical component resulted from extraordinary phenomena such as lightning, in order to improve stability. CONSTITUTION: An earth device includes a bronze pipe(10). The bronze pipe(10) includes a cap(20) which is to be closed and opened on an aperture(12a) of one side of the pipe. The cap(20) prevents impurities from being drained into a central hole(14) of the bronze tube. The bronze tube includes a central hole inside so as to concentrate conductive earth gel into the central hole. The earth bars(30) are further included in the earth device according to the present invention so as to improve earth effect especially in case of extraordinary phenomenon.
Patent KR-19990044492-A (KR)
Title: 광디스크 및 그 제조방법, 시트재료의 제조방법
IPC: B29C43/02
Filed: 1997-07-11
Abstract: 양산성이 높고, 광학특성, 기계적 정밀도 및 기계적 강도에 우수한 광디스크를 제공하고, 이 광디스크를 간단하게 효율좋게 제조하는 방법을 제공한다. 
     폴리올레핀계 중합체를 주성분으로 하는 재료를 압출성형한 시트를 디스크형상으로 가공한 기판(101)과, 기판(101)상에 형성된 광경화성수지층(102)으로 이루어지고, 소정의 정보에 근거한 요철이 형성된 정보기록면을 구비하여 구성한다.
Patent KR-19990044616-A (KR)
Title: 반도체 장치
IPC: H03K17/687
Filed: 1997-07-24
Abstract: 본 발명의 대표적인 것은, 출력단자를 구동하는 출력트랜지스터 NMOS130, 또는 PMOS129로 구성되는 구동부와, 이 구동부의 동작상태를 제어하는 제어부를 가지는 반도체 장치에 관한 것이다. 이 제어부는, 출력트랜지스터 NMOS130 또는 PMOS129를 온/오프시키는 인에이블신호를 출력한다. 이 인에이블신호는 펄스형의 판독명령신호IN1로부터 생성되고, 출력트랜지스터 NMOS130 또는 PMOS129가 온에서 오프로 천이하기까지의 시간을 길어지게 한다.
Patent KR-20000064469-A (KR)
IPC: C07C241/04
Filed: 1996-12-19
Abstract: A process for producing a hydrazide of formula (1.0) is disclosed. The process comprises reacting a hydrazone of formula (2.0) or (2.1), wherein said hydrazone is in toluene, with a mixture of Grignard reagents, wherein said Grignard reagents are in a suitable organic solvent; wherein: (A) Z is a suitable carbonyl protecting group; (B) R is a suitable -OH protecting group; (C) R<1> is selected from: H, a non-enolizable alkyl, a non-enolizable substituted alkyl, aryl, substituted aryl, -S-aryl, -S-(substituted aryl), -S-alkyl, -S-(substituted alkyl), alkoxy, substituted alkoxy, aryloxy, or substituted aryloxy; (D) said mixture of Grignard reagents comprises R<2>MgX in admixture with R<3>MgX; (E) R<2> is a suitable alkyl, substituted alkyl, alkenyl, alkynyl, aryl, substituted aryl, or aralkyl group capable of adding to the -C=N group of the hydrazone to produce the hydrazide; (F) R<3> is a suitable alkyl, substituted alkyl, aryl or substituted aryl group that is more sterically hindered than said R<2> group; (G) X is independently selected from Cl, Br or I for each Grignard reagent; (H) when said hydrazone is a compound of formula (2.0) then the reaction is conducted at a temperature of about +30 to about -40  DEG C; and (I) when said hydrazone is a compound of formula (2.1) then the reaction is conducted at a temperature of about +40 to about -20  DEG C.
Patent KR-19990082570-A (KR)
IPC: B65D30/00
Filed: 1996-02-16
Abstract: The present invention provides a freezer bag comprising a multibag (90) having at least an inner liner bag (91) and an outer support bag (92), the inner liner bag having a first sidewall (94) and a second sidewall (94') attached together along respective lateral edges forming edge seals, each sidewall having a top edge (95, 95'), and the liner bag having a folded edge defining the bottom of the liner bag, the outer support bag having two sidewalls (96, 96') attached together along respective lateral edges forming edge seals, each sidewall having top edges defining the opening to the multibag, and the support bag having a folded edge defining the bottom of the multibag, the top edges of the liner bag being attached to an inner surface of each respective sidewall of the support bag wherein the liner is thermoplastic and has a thickness of less than 2.0 mil (50.8 micron).
Patent KR-19990087679-A (KR)
Title: 부품탑재(搭載)장치
IPC: H05K13/02
Filed: 1997-03-12
Abstract: 부품탑재 전의 기판(1)을 로더 유니트(15)로부터 부품탑재위치(12)로 이송하고, 부품을 탑재한 후에 기판(1)을 로더 유니트(15)쪽으로 회송하여 배출시키고, 부품탑재 위치에서 기판(1)위에 부품을 탑재한 후에는 기판(1)을 부품탑재위치로부터 언로더 유니트(9)로 이동시킴과 동시에 부품탑재 전의 다음의 기판을 로더 유니트(15)로부터 부품탑재위치로 이송하며, 그 후에 언로더 유니트(9)가 로더 유니트(15)와 결합될 때까지 언로더 유니트(9)를 부품탑재위치에 있는 기판위치로 이동시키고, 언로더 유니트(9)쪽으로 이동한 부품탑재 후의 기판을 로더 유니트(15)쪽으로 이송하여 배출시키는 기판이송방법이 제공된다.
Patent KR-20000064864-A (KR)
IPC: B64F1/00
Filed: 1998-02-06
Abstract: Vehicle arresting blocks of cellular concrete are usable to safely slow travel of an object and may be used to construct an aircraft arresting bed at the end of an airport runway. For such purposes, cellular concrete blocks must be fabricated to exhibit compressive gradient strengths of predetermined values to provide sufficient, but not excessive, deceleration forces on an object. Material uniformity characteristics must be met to avoid unacceptable drag force variations, so that arresting blocks desirably exhibit a predetermined compressive gradient strength (e.g., a 60/80 CGS) over a depth of penetration of 10 to 66 percent of block thickness. A 60/80 CGS will typically represent an average compressive strength of 70 pounds per square inch over such depth of penetration. Prior applications of cellular concrete typically involved meeting minimum strength values and the production methods did not meet uniformity or compressive gradient strength predictability as required for arresting blocks. Described methods include parameter, ingredient and process controls and ranges effective to enable fabrication of arresting blocks having dry densities and compressive gradient strengths which can be specified in order to provide limited deceleration of aircraft and other objects. Limited deceleration can avoid destructive effects inherent in excess rates of deceleration. SEQUENCE LISTING (Not Applicable)
Patent KR-20000016044-A (KR)
Title: Method and apparatus for compression compatible video fingerprinting
Inventor: RYAN JOHN O
IPC: G06T3/00
Filed: 1997-05-29
Abstract: PURPOSE: A fingerprint method and apparatus are provided to overcome the compression system incompatibility of fingerprint systems, not to degrade the inter-field redundancy to a level that requires excessive bit rates to provide a given picture quality. CONSTITUTION: A fingerprint technique is based on the principle of applying very slight local spatial distortion to the pixels in a video image by means of selected warp patterns. A spatial image distortion (SID) fingerprint inserter has properties; displacement of each pixel of the original image by a slight amount unnoticeable to the eye (which may be zero) horizontally and/or vertically. maintaining a given pixel in the fingerprinted image with the same set of contiguous pixels that it had in the original image. A spatial image distortion (SID) fingerprint inserter embodies a slight local spatial image distortion of a video signal which is not visually noticeable and which is electronically detectable. A warp engine prevents the fingerprinted video image from being copied, messages which allow identifying the source and date of an unauthorized copy of the video image, etc.