Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7194615 | Reconfigurable apparatus being configurable to operate in a logarithmic scale An integrated circuit has a command/control bus and a number of processing elements. The processing elements contain a number of parts, each part being connected to said command/control bus. Each one of the processing elements is re-configurable in response to comma... | 03/20/2007 |
| 7085421 | Image processing method for facilitating data transmission An image processing method for facilitating data transmission is provided. An image compression method is performed to convert X-bits binary digital signals to a binary compressed data in a floating-point form of (1.n)*2m. Bit m represents the first bit w... | 08/01/2006 |
| 7072926 | Blind transport format detection system and method with logarithm approximation for reliability figure Blind transport format detection with sliding window trace-back for evaluating decodings to candidate block lengths together with piecewise linear approximation of the reliability figure (logarithm of ratio of maximum survivor path metric minus minimum survivor path... | 07/04/2006 |
| 7042523 | Video correction system and method using logarithmic conversion A video correction system and method are disclosed that provide video correction for an input signal. The system includes a logarithmic converter that creates a logarithmic representation of the input signal. A configurable corrector/converter comprises a plurality ... | 05/09/2006 |
| 7016541 | Image processing method for facilitating data transmission An image processing method for facilitating data transmission is provided. An image compression method is performed to convert X-bits binary digital signals to a binary compressed data in the form of n*2m, in which n is represented by the former Y bits of... | 03/21/2006 |
| 7003541 | Zero-knowledge proving system and method A zero-knowledge proving system includes a proving mechanism for proving equality or inequality of two discrete logarithms and a verifying mechanism for verifying said equality or inequality. The proving mechanism stores public information including a designated ope... | 02/21/2006 |
| 6961744 | System and method for generating an integer part of a logarithm of a floating point operand A logarithm unit computes an integer part of a logarithm of a floating point operand according to an embodiment of the present invention. The logarithm unit analyzes a format of the floating point operand and generates at least one signal representative of the forma... | 11/01/2005 |
| 6711601 | Logarithmic arithmetic unit avoiding division as far as predetermined arithmetic precision is guaranteed A logarithmic arithmetic unit includes first logarithmic operation part multiplying an exponent part of floating-point data by a prescribed value, a logarithmic table memory outputting a logarithmic value corresponding to bit data expressing a digit higher than a pr... | 03/23/2004 |
| 6480873 | Power operation device A power operation device comprises a bit operation unit or performing a bit shift operation on a logarithmic base bit string from a logarithm operation unit according to an input exponent bit string Y, and for furnishing the shifted logarithmic base bit s... | 11/12/2002 |
| 6233595 | Fast multiplication of floating point values and integer powers of two A method for performing fast multiplication in a microprocessor is disclosed. The method comprises detecting multiplication operations that have a floating point operand and an integer operand, wherein the integer operand is an integer power of two. Once ... | 05/15/2001 |
| 6182100 | Method and system for performing a logarithmic estimation within a data processing system A method for performing a logarithmic estimation on a positive floating-point number within a data processing system is disclosed. A floating-point number includes a sign bit, multiple exponent bits, and a mantissa having an implied one and multiple fract... | 01/30/2001 |
| 6178435 | Method and system for performing a power of two estimation within a data processing system A method for performing a power of two estimation on a floating-point number within a data processing system is disclosed. The floating-point number includes a sign bit, multiple exponent bits, and a mantissa having an implied one and multiple fraction bi... | 01/23/2001 |
| 6128638 | Method and apparatus for calculating X to the Exponent of Y A hardware implementation solves for the value of XY, where X and Y are real (fixed point or floating point) numbers by using the formula XY =exp (loge (XY))=exp(ln(XY))=exp(Y*ln(X)). A fixed point re... | 10/03/2000 |
| 5933360 | Method and apparatus for signal compression and processing using logarithmic differential compression For most `natural` signals like audio and video, the first derivative with respect to time (or spatially as in video) can have a significant amount of error and still be perceived as accurate due to the masking properties of the ears and eyes. A Logarithm... | 08/03/1999 |
| 5926406 | System and method for calculating floating point exponential values in a geometry accelerator A novel system and method computes a floating point value of an exponential expression in the form of "ax " in a geometry accelerator. In accordance with one aspect of the invention, the method includes the steps of receiving the values "a" and... | 07/20/1999 |
| 5912830 | System and method for conditionally calculating exponential values in a geometry accelerator A method computes exponentials of a lighting equation in a geometry accelerator. In accordance with one aspect of the invention, the method includes the steps of receiving values for a first term "a" and a second term "x" of an exponential in the form a | 06/15/1999 |
| 5365465 | Floating point to logarithm converter A method converts an n-bit floating point number to a logarithmic representation, the number having a first set of bits assigned to a mantissa, and a second set of bits assigned to an exponent. The logarithmic representation has a characteristic and a fra... | 11/15/1994 |
| 4720809 | Hybrid floating point/logarithmic number system arithmetic processor A hybrid arithmetic processor which combines attributes of conventional floating point (F.P) arithmetic with logarithmic number system (LNS) arithmetic. The arithmetic processor includes an input section (forward code converter) for converting input opera... | 01/19/1988 |
| 4583180 | Floating point/logarithmic conversion system A digital transformation system for converting between logarithm functions and floating point functions very quickly by normalizing the floating point number in the range of one to two, and adapting one function as the other function, after a correction, ... | 04/15/1986 |
