Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 7391632 | Apparatus of selectively performing fast hadamard transform and fast fourier transform, and CCK modulation and demodulation apparatus using the same A Fast Fourier Transform (FFT) apparatus for selectively performing Fast Hadamard transform (FHT), and a complementary code keying (CCK) modulation/demodulation apparatus using the same. An OFDM module and CCK module are integrated as one module having lower complex... | 06/24/2008 |
| 7281237 | Run-time verification of annotated software code Verification of a software program may be automated by receiving a program source file comprising program source code and at least one formal specification annotation, extracting the at least one formal specification annotation from the program source file, compilin... | 10/09/2007 |
| 7143332 | Methods and structures for providing programmable width and error correction in memory arrays in programmable logic devices A random access memory (RAM) in a programmable logic device (PLD) supports error correction as well as a configurable data width. The number of bits in a user data word varies by the selected configuration of the RAM, while the number of bits in the error correction... | 11/28/2006 |
| 6859411 | Circuit and method for writing and reading data from a dynamic memory circuit A method for writing and reading data is performed on a dynamic memory circuit. The memory circuit has memory cells that can be addressed via word lines and bit lines. A word line is activated in the event of addressing of a memory area with a specific address. A wo... | 02/22/2005 |
| 5754465 | No physical movement component record reproduce device and flat display device A non-physical movement component recording and reproducing device produces a pair of special waves with special waveforms that form a special stationary waveform. An electrically-conducting media contains three overlaid layers, a first layer contains the... | 05/19/1998 |
| 4349893 | Memory with current-controlled serial-to-parallel conversion of magnetic field domains A device for magnetic domains contains at least two, meander-shaped, current conductors for the purpose of driving parallel domains along these conductors by means of respective currents in them that alternate cyclically. At at least one end the current c... | 09/14/1982 |
| 4236226 | Magnetic domain device A magnetic device comprising at least one thin domain layer of a magnetizable material which has an easy axis of magnetization which is substantially normal to the surface of the layer and in which magnetic domains are propagated under the influence of a ... | 11/25/1980 |
| 4228523 | Conductor access bubble memory arrangement Continuous film type, current-access bubble memories are designed for low power operation by including, along the current paths, areas of reduced width. The areas of reduced widths are characterized by relatively high current densities, which are preferre... | 10/14/1980 |
| 4181979 | Magnetic bubble memory with single-level bubble functional elements Magnetic bubble functional elements are implemented by aperture patterns in a single layer of electrically-conducting material. The operations of the elements are compatible with single-level conductor driven bubble memories described in A. H. Bobeck pate... | 01/01/1980 |
| 4164028 | Current access bubble memory system A current access bubble memory system includes a method and device for propagating and switching isolated bubbles within a plurality of orthogonal propagation channels. The device includes two orthogonal arrays of parallel current conductors oriented at 4... | 08/07/1979 |
| 4143419 | Magnetic bubble memory with single level electrically-conducting, drive arrangement A conductor-access magnetic bubble memory is realized with a single electrically-conductive film for the propagation of bubbles. The film is characterized by sequences of apertures in the film. The sequences define paths for bubble movement in response to... | 03/06/1979 |
| 4038541 | Hard magnetic bubble domain analog multiplier Hard magnetic bubble domains are propagated in displaced orbits in response to the product of two cyclically varying propagation control fields. The control fields modulate the hard bubble domain diameter and a driving field gradient. Repulsive boundaries... | 07/26/1977 |
| 4023150 | Bubble translation system A bubble lattice translation system is disclosed. The system is a combination of two arrays of parallel conductors and confining means. One array of parallel conductors is oriented at an angle of 60° to the lattice translation axis. All of these conducto... | 05/10/1977 |
