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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 5619586 | Method and apparatus for producing a directly viewable image of a fingerprint A directly viewable fingerprint image is formed by illuminating a transparent planar substrate from one surface with collimated light, the substrate having pressed against the other surface a fingerprint to be imaged. Light striking the surface against wh... | 04/08/1997 |
| 5598474 | Process for encrypting a fingerprint onto an I.D. card The invention and process utilizes any number of biological parts to provide a proof of legitimacy and from them generate and verify a personal identification card (ID). This rendition of the invention deals mainly with fingerprints, but does not preclude... | 01/28/1997 |
| 5596454 | Uneven surface image transfer apparatus Enhanced performance of an uneven surface image transfer apparatus is provided by using a well-defined convergent field of illumination that is nominally focussed at the stop of an imaging lens. An integrated optical system exhibiting such enhanced perfor... | 01/21/1997 |
| 5493621 | Fingerprint ID system and method A fingerprint ID system, which compares input fingerprint image data with registered data, with a digital signal processor exclusive for image processing use, indpendently of a central processing unit comprises: a device for scanning the input fingerprint... | 02/20/1996 |
| 5467403 | Portable fingerprint scanning apparatus for identification verification A portable and lightweight fingerprint scanning apparatus which can optically scan and record fingerprint images in the field and transmit said images to a mobile unit for processing and subsequent wireless transmission to a central location for the purpo... | 11/14/1995 |
| 5267324 | Image comparison method A method for comparing two images including ridges with each other, comprising steps from i) to iv). i) Calculating density value of each pixel of an image to be examined and reference image; ii) detecting a direction with minimal change between each pixe... | 11/30/1993 |
| 5261008 | Fingerprint verification method A method for verifying that a sample image of a fingerprint is that of a designated person through comparison of sample data, generated from the sample image, with master data, generated from a master image of the designated person's fingerprint. The mast... | 11/09/1993 |
| 5239590 | Fingerprint verification method A method for verifying that a sample image of a fingerprint is that of a designated person through comparison of sample data, generated from the sample image, with master data, generated from a master image of the designated person's fingerprint. The mast... | 08/24/1993 |
| 5233404 | Optical scanning and recording apparatus for fingerprints In an optical fingerprinting system a truncated prism is used. The prism has an imaging surface against which a finger is applied, an illumination surface substantially parallel to the imaging surface and an inclined viewing surface between the imaging an... | 08/03/1993 |
| 5230025 | Method and apparatus for capturing skin print images A system for generating data characteristic of a rolled skinprint in real time. A body part such as a finger contacts a receiving surface of an optical device. The receiving surface is imaged and recorded on an image recording medium during the period of ... | 07/20/1993 |
| 5222152 | Portable fingerprint scanning apparatus for identification verification A portable fingerprint scanning apparatus for identification verification which can optically scan and record fingerprint images in the field and wirelessly transmit said images to a mobile unit for processing and subsequent wireless transmission to a cen... | 06/22/1993 |
| 5222153 | Apparatus for matching a fingerprint using a tacky finger platen In a fingerprint matching system, a finger platen formed of an optical element having a tacky reading surface for providing an accurate and consistent image of a fingerprint pattern.... | 06/22/1993 |
| 5210797 | Adaptive dictionary for a fingerprint recognizer A method and apparatus for fingerprint recognition is provided in accordance with the present invention to achieve a higher rate of recognition by subsequently storing fingerprint patterns with higher rates of correspondence in place of fingerprint patter... | 05/11/1993 |
| 5189482 | Optical apparatus for fingerprint recognition system An optical apparatus for a fingerprint recognition system utilizes a light source for emitting a spherical beam. A collimating hologram produces a plane beam upon receiving the emitted spherical beam from the light source. A diffuser generates a scattered... | 02/23/1993 |
| 5187748 | Optical apparatus for fingerprint identification system An optical apparatus for a fingerprint identification system having a multi-LED for emitting a light, a prism having a slant surface to which a fingerprint being identified is contacted and in which the incident light is absorbed at each ridge but reflect... | 02/16/1993 |
| 5146102 | Fingerprint image input apparatus including a cylindrical lens A fingerprint image input apparatus for optically detecting ridges of a skin surface of a finger and inputting a detected signal to various control units, includes a transparent member having a lower surface and an upper surface on which the finger subjec... | 09/08/1992 |
| 5109427 | Fingerprint recognition device using a hologram A fingerprint recognition device is disclosed which is capable of making a more definite fingerprint recognition by using a hologram. The device includes a laser for emitting light, a collimator for making the light travel in parallel, and a tetragonal pr... | 04/28/1992 |
| 5105467 | Method of fingerprint verification A method of fingerprint verification includes determining a direction difference between a direction pattern of an input fingerprint and a direction pattern of a registered fingerprint and comparing the determined direction difference with predetermined u... | 04/14/1992 |
| 5054089 | Individual identification apparatus An apparatus for identifying an individual includes a reader for reading the input image of a finger of the individual and outputting an image signal corresponding to the image of the finger, an adder for adding the image signal output from the reader in ... | 10/01/1991 |
| 5054090 | Fingerprint correlation system with parallel FIFO processor A method and apparatus for parallel processing "live" and pre-recorded "reference" fingerprint data for comparison purposes. An array sensor images a selected portion of a live fingerprint and video means produce corresponding digital live image data. The... | 10/01/1991 |
| 5040223 | Fingerprint verification method employing plural correlation judgement levels and sequential judgement stages A method of fingerprint verification in which an input fingerprint is compared with a previously registered fingerprint, wherein the degree of correlation between a first section of the registered fingerprint and the input fingerprint is first determined ... | 08/13/1991 |
| 4933976 | System for generating rolled fingerprint images A method for generating data characteristic of a rolled fingerprint image in real time. A finger is continuously rolled across a finger receiving surface of an optical device. The finger receiving surface is imaged to generate digital data representative ... | 06/12/1990 |
| 4905293 | Image input device An image input device for optically sensing a fingerprint or like pattern to convert it to an electrical signal is disclosed. A guide is provided on a contact surface, or reflective surface, of a prism to orient the lengthwise direction of the pattern of ... | 02/27/1990 |
| 4896363 | Apparatus and method for matching image characteristics such as fingerprint minutiae A system for matching images in which characteristic points of an image to be tested for a match, such as a fingerprint, are compared with characteristic points of a master image by attempting to match the distances between pairs of master characteristic ... | 01/23/1990 |
| 4876725 | Method and apparatus for fingerprint verification The invention relates to an optical processing fingerprint verification device. A light source illuminates a prism upon which the user has placed two fingers to that light reflected from the prism is modulated by the data of the users fingerprints. The fi... | 10/24/1989 |
| 4827527 | Pre-processing system for pre-processing an image signal succession prior to identification In a pre-processing system (45) for pre-processing a succession of image signals which are extracted from an object on an input surface and which are representative of a ridge pattern of the object, a center position of the ridge pattern is determined wit... | 05/02/1989 |
| 4805223 | Skin-pattern recognition method and device A method of authenticating a person by comparing information from a currently taken skin-pattern with stored information from a previously taken skin-pattern is characterized in that the currently taken skin-pattern is produced on a contact surface, an im... | 02/14/1989 |
| 4792226 | Optical fingerprinting system An optical fingerprinting system includes an optics/processor unit, a video monitor, a data terminal, and a printer. The optics/processor unit includes a slap print prism for providing slap fingerprint images, and a plurality of individual finger prisms h... | 12/20/1988 |
| 4684802 | Elliptical finger press scanner with rotating light source A scanner for scanning an increased area of a finger held or pressed on a concave elliptically cylindrical surface having two focal axes includes a linear light source positioned at one focal axis of a first reflective cylindrical elliptical surface, the ... | 08/04/1987 |
| 4414684 | Method and apparatus for performing a comparison of given patterns, in particular fingerprints A method and an apparatus are proposed for performing a comparison of patterns of invariable form, especially fingerprint pattern. By the application of a finger on a prism within a beam of light, a latent picture of fingerprint lines is obtained which is... | 11/08/1983 |
| 4210899 | Fingerprint-based access control and identification apparatus A system including electronic, mechanical and optical mechanisms which enable the system to: "read" a human fingerprint directly from a human finger; convert the ridge-valley pattern of that fingerprint into an electronic representation; transmit the elec... | 07/01/1980 |
| 4053228 | Finger identification A fingerpress is formed by pressing a finger against the back surface of a transparent glass plate and holding it in a predetermined position thereon. This fingerpress is interrogated by a light beam directed through the front surface of the glass plate. ... | 10/11/1977 |
| 4003656 | Fingerprint scanning device A method and apparatus for rapidly scanning the finger of an individual with a monochromatic beam of light and for producing an output in accordance with the light reflected by the finger which corresponds to the fingerprint of the finger. The light beam ... | 01/18/1977 |
| 3975711 | Real time fingerprint recording terminal A fingerprint optical sensor terminal is provided for use in the real time recording of an impression of a fingerprint pattern, the human finger being placed for the purpose at an input window surface of the sensor terminal. The sensor terminal provides p... | 08/17/1976 |
| 3968476 | Spurious signal removal in optical processor fingerprint identification apparatus An improved incoherent optical processor fingerprint identification apparatus employs a rotatable grating for inspecting the ridge orientations in a plurality of preselected finite sample areas of a fingerprint. A detector array including a plurality of d... | 07/06/1976 |
| 3947128 | Pattern comparison A method and device for the comparison of patterns, and especially of fingerprints, making possible the identification of a given person. The device comprises means for projecting an incoherent image of the finger to be compared onto a permanent fingerpri... | 03/30/1976 |
| 3944978 | Electro-optical method and apparatus for making identifications A reference diffraction pattern is generated by radiating an invariant physical characteristic such as a fingerprint with coherent light, this reference diffraction pattern being converted by a detector into a reference electrical function which is stored... | 03/16/1976 |
