Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 8069349 | Method of secure file transfer A method of securely transferring files from an un-trusted to a trusted network is disclosed. A file that is an archive file of many component files is separated into constituent files. Each file is stored on a server connected to an un-trusted network, and a series... | 11/29/2011 |
| 8068850 | Method of locating a transmitter A method of locating a transmitter is disclosed. A communications link is established between multiple receiving stations and a control station, and used with a calibration signal to calibrate out the time delay of the communications link. A radiated signal from an ... | 11/29/2011 |
| 7945947 | Method of providing a computer user with high-level privileges A method of giving a user high-level access privileges if a combination of keystrokes is sent to a desktop is disclosed. Each terminal services session is enumerated and sessions identified. Unidentified sessions have a user-definable process associated with the ses... | 05/17/2011 |
| 7930538 | Method of secure file transfer A method of securely transferring files from an un-trusted to a trusted network is disclosed. A file that is an archive file of many component files is separated into constituent files. Each file is stored on a first computer connected to an un-trusted network, and ... | 04/19/2011 |
| 7734991 | Method of encoding signals with binary codes A method of encoding a communication signal by selecting a cyclic code, establishing a generator polynomial, generating a polynomial using the generator polynomial, forming a matrix from the generated polynomial, receiving data to be encoded, appending zeros to the ... | 06/08/2010 |
| 7734671 | Method of sorting text and string searching A method of sorting text for memory efficient searching is disclosed. A FM-index is created on received text, and a number of rows are marked. The locations of the marked rows are stored in data buckets as well as the last column of the FM-index, which is stored as ... | 06/08/2010 |
| 7715996 | Method of estimating digital signal frequency The present invention is a novel method of performing spectral analysis on a digital signal. The received signal is segmented into a number of data blocks, which may be disjoint or overlapping. For each data block, the signal is differentiated, and the Gram-Schmidt ... | 05/11/2010 |
| 7694207 | Method of decoding signals having binary BCH codes A method of correcting a communication signal with BCH product codes is disclosed. The method comprising the steps of receiving a codeword vector, establishing a generator polynomial, establishing a check polynomial, calculating a binary-matrix, and calculating the ... | 04/06/2010 |
| 7642986 | Range limited antenna Range limited antenna includes at least two sets of antenna elements and an RF signal processing network connected to each set of antenna elements. The network has a function, F(Ξ,x)=ΦA(x)−ΦB(x)+ΦC(x)−ΦD(x) . . . ... | 01/05/2010 |
| 7607858 | Secure manhole accessway An enhanced security manhole cover is disclosed, comprising a frame, outer cover, inner cover, crossbar, saddle, eyebolt, and padlock. The inner cover, which closes the lower opening in a manhole, includes a detent in the top surface for receiving the eyebolt. The c... | 10/27/2009 |
| 7581089 | Method of protecting a computer stack A method of protecting a return address on a computer stack is disclosed. Two stacks are created, the first a normal stack, and the second, or shadow, having shadow frames containing the return address upon a subroutine call, the address on the first stack where the... | 08/25/2009 |
| 7400194 | Method of amplifying a digital signal and device therefor An efficient method of amplifying a digital signal with reduced electromagnetic interference is disclosed. The invention applies an average amplitude detector to the input signal to control the clock frequency of a pseudo-random number generator so that the clock si... | 07/15/2008 |
| 7383026 | Wideband retroreflector A novel single wideband retroreflector is disclosed that eliminates the need for a local oscillator and a local transmitter. The wideband retroreflector of the present invention comprises an antenna, a circulator, and a mixer. An externally produced continuous wave ... | 06/03/2008 |
| 7350689 | Reusable tamper evident envelope A reusable tamper-evident envelope includes a first substrate, a second substrate superimposed on the first substrate, at least one auxiliary substrate superimposed on and joined along one edge to the second substrate, and at least one seal along all but one edge jo... | 04/01/2008 |
| 7346311 | Single frequency repeater A novel single frequency repeater is disclosed that eliminates the problems of feedback and concurrent oscillation. The single frequency repeater of the present invention comprises a backplane, a first antenna, a filter, an amplifier, a power supply, a switch, and a... | 03/18/2008 |
| 7283015 | Device for impedance matching radio frequency open wire transmission lines An impedance matching device comprises a dielectric material having a ground plane affixed to one surface, a microstripline conductor disposed on an opposite surface, and a movable dielectric plate. The movable dielectric plate has a higher dielectric constant than ... | 10/16/2007 |
| 7201410 | Reusable tamper evident security device A reusable tamper-evident security device for use on a door or container includes a pair of base members, a pair of first leg members, a pair of second leg members, a pair of U-shaped upper members, and a pair of removable security label blanks. A base member, a fir... | 04/10/2007 |
| 7129742 | Majority logic circuit A novel majority logic circuit is disclosed to determine whether the majority of the inputs are a one, within a constant number of clock cycles, regardless of the number of inputs. The majority logic circuit according to the present invention includes a plurality of... | 10/31/2006 |
| 7005652 | Sample-stand for scanning electron microscope The present invention is a sample-stage for a scanning electron microscope. The sample stage has a U-shaped base, horizontally oriented with the closed end forming the right side. A bottom member abuts the bottom of the U-shaped base, forming an interior cavity with... | 02/28/2006 |
