 Electronic File Wrappers |  Electronic Patent Documents |  Paper Patent Documents | Current as of: June, 1999
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| DF | CLASS NOTES | |
| 1 | DF | ELECTRICAL HYBRID CALCULATING COMPUTER |
| 2 | DF | .~ Plural complete computers |
| 3 | DF | .~ Particular function performed |
| 4 | DF | .~.~ Evaluation of trigonometric function |
| 5 | DF | .~.~ Correlation, convolution, or transformation |
| 6 | DF | .~.~ Integration or differentiation |
| 7 | DF | .~.~ Multiplication or division |
| 8 | DF | .~.~ Function generation |
| 9 | DF | .~.~.~ Piece-wise linear synthesis |
| 100 | DF | ELECTRICAL DIGITAL CALCULATING COMPUTER |
| 101 | DF | .~ Pulse repetition rate |
| 102 | DF | .~.~ Digital differential analyzer |
| 103 | DF | .~.~ Multiplication or division |
| 104 | DF | .~ Plural complete computers |
| 105 | DF | .~ Combined with diverse art device |
| 106 | DF | .~.~ Checkbook |
| 107 | DF | .~.~ Writing instrument (e.g., pen) |
| 108 | DF | .~.~ Tape recorder |
| 109 | DF | .~.~ Communication device (e.g., telephone, radio, television) |
| 110 | DF | .~.~ Business device (e.g., billing, memorandum) |
| 111 | DF | .~.~ Horological device |
| 112 | DF | .~.~.~ Calendar |
| 130 | DF | .~ Programmable calculator |
| 131 | DF | .~ Having specialized input |
| 132 | DF | .~.~ Having supplemental environment related input |
| 133 | DF | .~.~.~ Cooking |
| 134 | DF | .~.~.~ Business |
| 135 | DF | .~.~ For security |
| 136 | DF | .~.~ Input verification |
| 137 | DF | .~.~ Fraction input |
| 138 | DF | .~.~ Flexible input |
| 139 | DF | .~.~ Including specific computing system interconnection |
| 140 | DF | .~.~ Modular or overlay |
| 141 | DF | .~.~ Including specific nonkeyboard-type information entry |
| 142 | DF | .~.~ Including specific keyboard-type information entry |
| 143 | DF | .~.~.~ Nonmechanical key actuation |
| 144 | DF | .~.~.~ User definable key |
| 145 | DF | .~.~.~ Plural function key |
| 146 | DF | .~.~.~ Key sequencing (i.e., sequence defines function) |
| 160 | DF | .~ Having specialized output |
| 161 | DF | .~.~ Having supplemental environment related output |
| 162 | DF | .~.~.~ Teaching |
| 163 | DF | .~.~.~ Business |
| 164 | DF | .~.~ Output verification |
| 165 | DF | .~.~ Blanking |
| 166 | DF | .~.~.~ Zero suppression |
| 167 | DF | .~.~ Prompting |
| 168 | DF | .~.~ Selective output |
| 169 | DF | .~.~ Sequential output |
| 170 | DF | .~.~ Using particular format |
| 171 | DF | .~.~ Symbol accompanying output |
| 172 | DF | .~.~ Audio |
| 173 | DF | .~.~ Printer |
| 174 | DF | .~.~ Multiple simultaneous outputs |
| 190 | DF | .~ Integrated circuit |
| 191 | DF | .~ Electro-optical |
| 192 | DF | .~ Bubble-domain |
| 200 | DF | .~ Particular function performed |
| 201 | DF | .~.~ Absolute value or magnitude |
| 202 | DF | .~.~ Median |
| 203 | DF | .~.~ Compression/decompression |
| 204 | DF | .~.~ Format conversion |
| 205 | DF | .~.~.~ Normalization |
| 206 | DF | .~.~ Unit conversion |
| 207 | DF | .~.~ Maximum/minimum determination |
| 208 | DF | .~.~ Scaling |
| 209 | DF | .~.~ Shifting |
| 210 | DF | .~.~ Determining number of like-valued bits in word |
| 211 | DF | .~.~ Determining number of like-valued leading or trailing bits |
| 212 | DF | .~.~ Detecting particular sequence of bits |
| 230 | DF | .~.~ Multifunctional |
| 231 | DF | .~.~.~ Microprocessor |
| 232 | DF | .~.~.~ Array of elements (e.g., AND/OR array, etc.) |
| 233 | DF | .~.~.~ Pipeline |
| 234 | DF | .~.~.~ Parallel bit input of operand |
| 235 | DF | .~.~.~ Uses look-up table |
| 236 | DF | .~.~.~ More than two operands |
| 250 | DF | .~.~ Random number generation |
| 251 | DF | .~.~.~ Oscillator controlled |
| 252 | DF | .~.~.~ Linear feedback shift register |
| 253 | DF | .~.~.~ Plural parallel output bits |
| 254 | DF | .~.~.~ Seed value controls |
| 255 | DF | .~.~.~ Truly random number |
| 256 | DF | .~.~.~ Plural parallel outputs |
| 270 | DF | .~.~ Function generation |
| 271 | DF | .~.~.~ Direct digital frequency synthesizer |
| 272 | DF | .~.~.~ Memory used to store waveshape |
| 273 | DF | .~.~.~ Counter as source (i.e., input) |
| 274 | DF | .~.~.~ Linear |
| 275 | DF | .~.~.~ Circular |
| 276 | DF | .~.~.~ Trigonometric |
| 277 | DF | .~.~.~ Logarithmic/exponential |
| 290 | DF | .~.~ Interpolation/extrapolation |
| 300 | DF | .~.~ Filtering |
| 301 | DF | .~.~.~ Tapped delay line |
| 303 | DF | .~.~.~ Microprocessor |
| 304 | DF | .~.~.~ Nonlinear (e.g., median, etc.) |
| 305 | DF | .~.~.~ Initialization |
| 306 | DF | .~.~.~ Finite arithmetic effect |
| 307 | DF | .~.~.~ Delta/differential coded |
| 308 | DF | .~.~.~ Multidimensional data |
| 309 | DF | .~.~.~ Frequency measurement |
| 310 | DF | .~.~.~ Coherent |
| 311 | DF | .~.~.~ Frequency detection |
| 312 | DF | .~.~.~.~ Tone detection |
| 313 | DF | .~.~.~ Decimation/interpolation |
| 314 | DF | .~.~.~ Matched filter type |
| 315 | DF | .~.~.~ By convolution |
| 316 | DF | .~.~.~ Having multiplexing |
| 317 | DF | .~.~.~ Wave |
| 318 | DF | .~.~.~ Lattice |
| 319 | DF | .~.~.~ Transversal |
| 320 | DF | .~.~.~ Recursive |
| 321 | DF | .~.~.~ Nontime domain |
| 322 | DF | .~.~.~ Adaptive |
| 323 | DF | .~.~.~.~ Equalizer |
| 400 | DF | .~.~ Transform |
| 401 | DF | .~.~.~ Multidimensional |
| 402 | DF | .~.~.~ Discrete Cosine Transform (i.e., DCT) |
| 403 | DF | .~.~.~ Fourier |
| 404 | DF | .~.~.~.~ Fast Fourier Transform (i.e., FFT) |
| 405 | DF | .~.~.~.~ Discrete Fourier Transform (i.e., DFT) |
| 406 | DF | .~.~.~.~ Pipeline |
| 407 | DF | .~.~.~.~ Systolic |
| 408 | DF | .~.~.~.~ Radix greater than two |
| 409 | DF | .~.~.~.~ Butterfly circuit |
| 410 | DF | .~.~.~ Walsh |
| 420 | DF | .~.~ Convolution |
| 421 | DF | .~.~.~ Cyclic/circular |
| 422 | DF | .~.~ Correlation |
| 423 | DF | .~.~.~ Single bit data |
| 424 | DF | .~.~.~ Multidimensional data |
| 425 | DF | .~.~.~ Using tapped delay line |
| 426 | DF | .~.~.~ Autocorrelation |
| 440 | DF | .~.~ Evaluation of trigonometric function |
| 441 | DF | .~.~.~ Vector resolver |
| 442 | DF | .~.~ Coordinate conversion |
| 443 | DF | .~.~ Differentiation |
| 444 | DF | .~.~ Integration |
| 445 | DF | .~.~ Averaging |
| 446 | DF | .~.~ Solving equation |
| 490 | DF | .~.~ Arithmetical operation |
| 491 | DF | .~.~.~ Residue number |
| 492 | DF | .~.~.~ Galois field |
| 493 | DF | .~.~.~ Multi-valued |
| 494 | DF | .~.~.~ Incremental mode |
| 495 | DF | .~.~.~ Floating point |
| 496 | DF | .~.~.~.~ Compensation for finite word length |
| 497 | DF | .~.~.~.~.~ Round off or truncation |
| 498 | DF | .~.~.~.~.~ Overflow or underflow |
| 499 | DF | .~.~.~.~.~ Sticky bit |
| 500 | DF | .~.~.~.~ Evaluation of root |
| 501 | DF | .~.~.~.~ Multiplication followed by addition |
| 502 | DF | .~.~.~.~ Reciprocal |
| 503 | DF | .~.~.~.~ Multiplication |
| 504 | DF | .~.~.~.~ Division |
| 505 | DF | .~.~.~.~ Addition or subtraction |
| 506 | DF | .~.~.~.~ Feedback |
| 507 | DF | .~.~.~.~ Parallel |
| 508 | DF | .~.~.~.~ Pipeline |
| 509 | DF | .~.~.~.~ Systolic |
| 510 | DF | .~.~.~.~ Microprocessor |
| 511 | DF | .~.~.~.~ Complex number format |
| 512 | DF | .~.~.~.~ Logarithmic format |
| 513 | DF | .~.~.~.~ Variable length or precision |
| 514 | DF | .~.~.~.~ Matrix array |
| 517 | DF | .~.~.~ Logarithmic format |
| 518 | DF | .~.~.~ Variable length |
| 519 | DF | .~.~.~ Negative radix |
| 520 | DF | .~.~.~ Matrix array |
| 521 | DF | .~.~.~ Pipeline |
| 522 | DF | .~.~.~ Systolic |
| 523 | DF | .~.~.~ Multiplication followed by addition (i.e., x*y+z) |
| 524 | DF | .~.~.~ Multiple parallel operations |
| 525 | DF | .~.~.~ Status condition/flag generation or use |
| 530 | DF | .~.~.~ Error detection or correction |
| 531 | DF | .~.~.~.~ Parity check |
| 532 | DF | .~.~.~.~ Residue code |
| 533 | DF | .~.~.~.~ Sequential repetition |
| 534 | DF | .~.~.~.~ Plural parallel devices |
| 540 | DF | .~.~.~ Cathode-ray tube |
| 541 | DF | .~.~.~ Contact-making device |
| 542 | DF | .~.~.~ Radix point control |
| 550 | DF | .~.~.~ Compensation for finite word length |
| 551 | DF | .~.~.~.~ Round off or truncation |
| 552 | DF | .~.~.~.~ Overflow or underflow |
| 553 | DF | .~.~.~.~.~ Prediction |
| 603 | DF | .~.~.~ Sum of products generation |
| 604 | DF | .~.~.~ All four basic functions |
| 605 | DF | .~.~.~ Evaluation of root |
| 606 | DF | .~.~.~ Evaluation of powers |
| 607 | DF | .~.~.~ Multiplication of matrices |
| 620 | DF | .~.~.~ Multiplication |
| 622 | DF | .~.~.~.~ Complex number format |
| 623 | DF | .~.~.~.~ Decimal |
| 624 | DF | .~.~.~.~ Coded decimal |
| 625 | DF | .~.~.~.~ Binary |
| 626 | DF | .~.~.~.~.~ Sum of cross products |
| 627 | DF | .~.~.~.~.~ Repeated addition |
| 628 | DF | .~.~.~.~.~.~ Multiple digit |
| 629 | DF | .~.~.~.~.~.~.~ Carry-save adders (i.e., CSAs) |
| 630 | DF | .~.~.~.~.~.~.~ Array adders |
| 631 | DF | .~.~.~.~.~.~.~ Pipeline |
| 632 | DF | .~.~.~.~.~.~.~ Feedback |
| 650 | DF | .~.~.~ Division |
| 651 | DF | .~.~.~.~ Decimal |
| 652 | DF | .~.~.~.~ Coded decimal |
| 653 | DF | .~.~.~.~ Binary |
| 654 | DF | .~.~.~.~.~ Multiplication by reciprocal |
| 655 | DF | .~.~.~.~.~ Repeated subtraction |
| 656 | DF | .~.~.~.~.~.~ Multiples of divisor |
| 670 | DF | .~.~.~ Addition/subtraction |
| 671 | DF | .~.~.~.~ Comparison |
| 672 | DF | .~.~.~.~ Incrementation/decrementation |
| 673 | DF | .~.~.~.~ Radix correction |
| 674 | DF | .~.~.~.~.~ Serial |
| 675 | DF | .~.~.~.~ Signal amplitude |
| 676 | DF | .~.~.~.~ Microwave |
| 677 | DF | .~.~.~.~ Cryogenic |
| 678 | DF | .~.~.~.~ By electronic tube |
| 679 | DF | .~.~.~.~ Magnetic |
| 680 | DF | .~.~.~.~ Decimal |
| 681 | DF | .~.~.~.~.~ Serial |
| 682 | DF | .~.~.~.~.~ Parallel |
| 683 | DF | .~.~.~.~ Coded decimal |
| 684 | DF | .~.~.~.~.~ Serial |
| 685 | DF | .~.~.~.~.~ Parallel |
| 700 | DF | .~.~.~.~ Binary |
| 701 | DF | .~.~.~.~.~ Bipolar junction transistor only or combined with Field-Effect Transistor |
| 702 | DF | .~.~.~.~.~ Field-Effect transistor (FET) |
| 703 | DF | .~.~.~.~.~ Gate functional level |
| 704 | DF | .~.~.~.~.~ For precharging (e.g., Manchester, etc.) |
| 705 | DF | .~.~.~.~.~ Serial |
| 706 | DF | .~.~.~.~.~ Parallel |
| 707 | DF | .~.~.~.~.~.~ Carry-ripple |
| 708 | DF | .~.~.~.~.~.~ Carry-save adders |
| 709 | DF | .~.~.~.~.~.~ Adding more than two numbers |
| 710 | DF | .~.~.~.~.~.~ Carry look-ahead |
| 711 | DF | .~.~.~.~.~.~.~ Slice block having block ripple |
| 712 | DF | .~.~.~.~.~.~.~ Slice block having block look-ahead |
| 713 | DF | .~.~.~.~.~.~.~ Tree structured logic blocks |
| 714 | DF | .~.~.~.~.~.~ Conditional sums |
| 800 | DF | ELECTRICAL ANALOG CALCULATING COMPUTER |
| 801 | DF | .~ Particular function performed |
| 802 | DF | .~.~ Evaluation of equation |
| 803 | DF | .~.~.~ Simultaneous |
| 804 | DF | .~.~.~ Differential (e.g., differential analyzer) |
| 805 | DF | .~.~ Averaging |
| 806 | DF | .~.~ Variance or standard deviation determination |
| 807 | DF | .~.~ Evaluation of root (e.g., square root) |
| 808 | DF | .~.~ Evaluation of powers |
| 809 | DF | .~.~ Coordinate conversion or vector resolver |
| 810 | DF | .~.~.~ Electromechanical |
| 811 | DF | .~.~ Evaluation of trigonometric function |
| 812 | DF | .~.~.~ Single triangle |
| 813 | DF | .~.~ Correlation or convolution |
| 814 | DF | .~.~.~ Of multidimensional data |
| 815 | DF | .~.~.~ Acoustic |
| 816 | DF | .~.~.~ Optical |
| 817 | DF | .~.~.~ Magetic or electromagnetic |
| 818 | DF | .~.~.~ Having tapped delay line |
| 819 | DF | .~.~ Filtering |
| 820 | DF | .~.~ Transform |
| 821 | DF | .~.~.~ Fourier |
| 822 | DF | .~.~ Differentiation |
| 823 | DF | .~.~ Integrator |
| 824 | DF | .~.~.~ Plural integration |
| 825 | DF | .~.~.~ Plural mode (e.g., plural scale) |
| 826 | DF | .~.~.~ Reset |
| 827 | DF | .~.~.~ Drift correction |
| 828 | DF | .~.~.~ Having simultaneous calculation of another function |
| 829 | DF | .~.~.~ Having a voltage to frequency converter |
| 830 | DF | .~.~.~ Electromechanical |
| 831 | DF | .~.~.~ Electro-optical |
| 832 | DF | .~.~.~ Magnetic or electromagnetic |
| 833 | DF | .~.~.~ Amplifier with additonal feedback loop |
| 834 | DF | .~.~.~.~ Additional R/C feedback loop |
| 835 | DF | .~.~ Multiplication |
| 836 | DF | .~.~.~ Time division |
| 837 | DF | .~.~.~ Quarter-square |
| 838 | DF | .~.~.~ Having charging or discharging of energy storage device |
| 839 | DF | .~.~.~ Photomultiplier |
| 840 | DF | .~.~.~ Electromagnetic |
| 841 | DF | .~.~.~.~ Hall effect |
| 842 | DF | .~.~.~ Electromechanical (e.g., servo-multiplier) |
| 843 | DF | .~.~.~ With alternative division |
| 844 | DF | .~.~ Division |
| 845 | DF | .~.~ Function generation |
| 846 | DF | .~.~.~ Piece-wise linear synthesis |
| 847 | DF | .~.~.~.~ Interpolation/extrapolation |
| 848 | DF | .~.~.~.~ Diode breakpoint |
| 849 | DF | .~.~.~ Cathode-ray tube |
| 850 | DF | .~.~.~ Two or more variables |
| 851 | DF | .~.~.~ Logarithmic/exponential |
| 852 | DF | .~.~.~ Triangular, sawtooth, or ramp |
| 853 | DF | .~.~.~ Hyperbolic |
| 854 | DF | .~.~.~ Electromechanical |