| Class Number |
Class Name |
No. of Patents |
| 708/800 |
Electrical analog calculating computer |
25 |
| 708/801 |
Particular function performed |
249 |
| 708/805 |
Averaging |
15 |
| 708/809 |
Coordinate conversion or vector resolver |
27 |
| 708/810 |
Electromechanical |
3 |
| 708/813 |
Correlation or convolution |
104 |
| 708/815 |
Acoustic |
122 |
| 708/818 |
Having tapped delay line |
45 |
| 708/817 |
Magnetic or electromagnetic |
7 |
| 708/814 |
Of multidimensional data |
10 |
| 708/816 |
Optical |
250 |
| 708/822 |
Differentiation |
19 |
| 708/844 |
Division |
18 |
| 708/802 |
Evaluation of equation |
16 |
| 708/804 |
Differential (e.g., differential analyzer) |
8 |
| 708/803 |
Simultaneous |
3 |
| 708/808 |
Evaluation of powers |
9 |
| 708/807 |
Evaluation of root (e.g., square root) |
16 |
| 708/811 |
Evaluation of trigonometric function |
25 |
| 708/812 |
Single triangle |
3 |
| 708/819 |
Filtering |
255 |
| 708/845 |
Function generation |
56 |
| 708/849 |
Cathode-ray tube |
13 |
| 708/854 |
Electromechanical |
4 |
| 708/853 |
Hyperbolic |
4 |
| 708/851 |
Logarithmic/exponential |
31 |
| 708/846 |
Piece-wise linear synthesis |
16 |
| 708/848 |
Diode breakpoint |
0 |
| 708/847 |
Interpolation/extrapolation |
12 |
| 708/852 |
Triangular, sawtooth, or ramp |
17 |
| 708/850 |
Two or more variables |
0 |
| 708/823 |
Integrator |
26 |
| 708/833 |
Amplifier with additional feedback loop |
3 |
| 708/834 |
Additional r/c feedback loop |
8 |
| 708/827 |
Drift correction |
7 |
| 708/831 |
Electro-optical |
21 |
| 708/830 |
Electromechanical |
2 |
| 708/829 |
Having a voltage to frequency converter |
8 |
| 708/828 |
Having simultaneous calculation of another function |
8 |
| 708/832 |
Magnetic or electromagnetic |
2 |
| 708/824 |
Plural integration |
11 |
| 708/825 |
Plural mode (e.g., plural scale) |
2 |
| 708/826 |
Reset |
9 |
| 708/835 |
Multiplication |
115 |
| 708/840 |
Electromagnetic |
3 |
| 708/841 |
Hall effect |
2 |
| 708/842 |
Electromechanical (e.g., servo-multiplier) |
1 |
| 708/838 |
Having charging or discharging of energy storage device |
24 |
| 708/839 |
Photomultiplier |
28 |
| 708/837 |
Quarter-square |
4 |
| 708/836 |
Time division |
8 |
| 708/843 |
With alternative division |
3 |
| 708/820 |
Transform |
37 |
| 708/821 |
Fourier |
69 |
| 708/806 |
Variance or standard deviation determination |
6 |
| 708/100 |
Electrical digital calculating computer |
75 |
| 708/192 |
Bubble-domain |
6 |
| 708/105 |
Combined with diverse art device |
77 |
| 708/110 |
Business device (e.g., billing, memorandum) |
47 |
| 708/106 |
Checkbook |
25 |
| 708/109 |
Communication device (e.g., telephone, radio, television) |
67 |
| 708/111 |
Horological device |
83 |
| 708/112 |
Calendar |
61 |
| 708/108 |
Tape recorder |
12 |
| 708/107 |
Writing instrument (e.g., pen) |
24 |
| 708/191 |
Electro-optical |
138 |
| 708/131 |
Having specialized input |
108 |
| 708/138 |
Flexible input |
17 |
| 708/135 |
For security |
42 |
| 708/137 |
Fraction input |
22 |
| 708/132 |
Having supplemental environment related input |
41 |
| 708/134 |
Business |
40 |
| 708/133 |
Cooking |
27 |
| 708/139 |
Including specific computing system interconnection |
52 |
| 708/142 |
Including specific keyboard-type information entry |
172 |
| 708/146 |
Key sequencing (i.e., sequence defines function) |
86 |
| 708/143 |
Nonmechanical key actuation |
12 |
| 708/145 |
Plural function key |
96 |
| 708/144 |
User definable key |
34 |
| 708/141 |
Including specific nonkeyboard-type information entry |
108 |
| 708/136 |
Input verification |
26 |
| 708/140 |
Modular or overlay nonkeyboard-type information entry |
68 |
| 708/160 |
Having specialized output |
61 |
| 708/172 |
Audio |
46 |
| 708/165 |
Blanking |
2 |
| 708/166 |
Zero suppression |
7 |
| 708/161 |
Having supplemental environment related output |
10 |
| 708/163 |
Business |
21 |
| 708/162 |
Teaching |
19 |
| 708/174 |
Multiple simultaneous outputs |
47 |
| 708/164 |
Output verification |
13 |
| 708/173 |
Printer |
47 |
| 708/167 |
Prompting |
17 |
| 708/168 |
Selective output |
22 |
| 708/169 |
Sequential output |
13 |
| 708/171 |
Symbol accompanying output |
21 |
| 708/170 |
Using particular format |
19 |
| 708/190 |
Integrated circuit |
73 |
| 708/200 |
Particular function performed |
212 |
| 708/201 |
Absolute value or magnitude |
53 |
| 708/490 |
Arithmetical operation |
251 |
| 708/670 |
Addition/subtraction |
185 |
| 708/700 |
Binary |
72 |
| 708/701 |
Bipolar junction transistor only or combined with field-effect transistor |
16 |
| 708/702 |
Field-effect transistor (fet) |
84 |
| 708/704 |
For precharging (e.g., manchester, etc.) |
25 |
| 708/703 |
Gate functional level |
63 |
| 708/706 |
Parallel |
83 |
| 708/709 |
Adding more than two numbers |
65 |
| 708/710 |
Carry look-ahead |
134 |
| 708/712 |
Slice block having block look-ahead |
34 |
| 708/711 |
Slice block having block ripple |
50 |
| 708/713 |
Tree structured logic blocks |
20 |
| 708/707 |
Carry-ripple |
78 |
| 708/708 |
Carry-save adders |
65 |
| 708/714 |
Conditional sums |
85 |
| 708/705 |
Serial |
14 |
| 708/678 |
By electronic tube |
0 |
| 708/683 |
Coded decimal |
13 |
| 708/685 |
Parallel |
13 |
| 708/684 |
Serial |
1 |
| 708/671 |
Comparison |
77 |
| 708/677 |
Cryogenic |
3 |
| 708/680 |
Decimal |
5 |
| 708/682 |
Parallel |
3 |
| 708/681 |
Serial |
0 |
| 708/672 |
Incrementation/decrementation |
78 |
| 708/679 |
Magnetic |
2 |
| 708/676 |
Microwave |
0 |
| 708/673 |
Radix correction |
27 |
| 708/674 |
Serial |
3 |
| 708/675 |
Signal amplitude |
6 |
| 708/604 |
All four basic functions |
8 |
| 708/540 |
Cathode-ray tube |
2 |
| 708/550 |
Compensation for finite word length |
47 |
| 708/552 |
Overflow or underflow |
93 |
| 708/553 |
Prediction |
19 |
| 708/551 |
Round off or truncation |
107 |
| 708/541 |
Contact-making device |
1 |
| 708/650 |
Division |
161 |
| 708/653 |
Binary |
71 |
| 708/654 |
Multiplication by reciprocal |
68 |
| 708/655 |
Repeated subtraction |
73 |
| 708/656 |
Multiples of divisor |
50 |
| 708/652 |
Coded decimal |
12 |
| 708/651 |
Decimal |
9 |
| 708/530 |
Error detection or correction |
87 |
| 708/531 |
Parity check |
42 |
| 708/534 |
Plural parallel devices |
15 |
| 708/532 |
Residue code |
11 |
| 708/533 |
Sequential repetition |
12 |
| 708/606 |
Evaluation of powers |
73 |
| 708/605 |
Evaluation of root |
107 |
| 708/495 |
Floating point |
164 |
| 708/505 |
Addition or subtraction |
171 |
| 708/496 |
Compensation for finite word length |
37 |
| 708/498 |
Overflow or underflow |
49 |
| 708/497 |
Round off or truncation |
113 |
| 708/499 |
Sticky bit |
36 |
| 708/511 |
Complex number format |
8 |
| 708/504 |
Division |
64 |
| 708/500 |
Evaluation of root |
48 |
| 708/506 |
Feedback |
5 |
| 708/512 |
Logarithmic format |
14 |
| 708/514 |
Matrix array |
20 |
| 708/510 |
Microprocessor |
41 |
| 708/501 |
Multiplication followed by addition |
117 |
| 708/503 |
Multiplication |
76 |
| 708/507 |
Parallel |
27 |
| 708/508 |
Pipeline |
45 |
| 708/502 |
Reciprocal |
36 |
| 708/509 |
Systolic |
6 |
| 708/513 |
Variable length or precision |
47 |
| 708/492 |
Galois field |
251 |
| 708/494 |
Incremental mode |
6 |
| 708/517 |
Logarithmic format |
58 |
| 708/520 |
Matrix array |
151 |
| 708/493 |
Multi-valued |
97 |
| 708/524 |
Multiple parallel operations |
94 |
| 708/523 |
Multiplication followed by addition (i.e., x*y+z) |
148 |
| 708/607 |
Multiplication of matrices |
88 |
| 708/620 |
Multiplication |
208 |
| 708/625 |
Binary |
282 |
| 708/627 |
Repeated addition |
72 |
| 708/628 |
Multiple digit |
129 |
| 708/630 |
Array adders |
67 |
| 708/629 |
Carry-save adders (i.e., csas) |
66 |
| 708/632 |
Feedback |
28 |
| 708/631 |
Pipeline |
20 |
| 708/626 |
Sum of cross products |
83 |
| 708/624 |
Coded decimal |
12 |
| 708/622 |
Complex number format |
53 |
| 708/623 |
Decimal |
9 |
| 708/519 |
Negative radix |
4 |
| 708/521 |
Pipeline |
45 |
| 708/542 |
Radix point control |
20 |
| 708/491 |
Residue number |
242 |
| 708/525 |
Status condition/flag generation or use |
128 |
| 708/603 |
Sum of products generation |
163 |
| 708/522 |
Systolic |
15 |
| 708/518 |
Variable length |
107 |
| 708/445 |
Averaging |
91 |
| 708/203 |
Compression/decompression |
233 |
| 708/420 |
Convolution |
94 |
| 708/421 |
Cyclic/circular |
20 |
| 708/442 |
Coordinate conversion |
71 |
| 708/422 |
Correlation |
203 |
| 708/426 |
Autocorrelation |
56 |
| 708/424 |
Multidimensional data |
26 |
| 708/423 |
Single bit data |
12 |
| 708/425 |
Using tapped delay line |
35 |
| 708/212 |
Detecting particular sequence of bits |
94 |
| 708/210 |
Determining number of like-valued bits in word |
57 |
| 708/211 |
Determining number of like-valued leading or trailing bits |
87 |
| 708/443 |
Differentiation |
20 |
| 708/440 |
Evaluation of trigonometric function |
44 |
| 708/441 |
Vector resolver |
40 |
| 708/300 |
Filtering |
560 |
| 708/322 |
Adaptive |
483 |
| 708/323 |
Equalizer |
445 |
| 708/315 |
By convolution |
77 |
| 708/310 |
Coherent |
24 |
| 708/313 |
Decimation/interpolation |
523 |
| 708/307 |
Delta/differential coded |
36 |
| 708/306 |
Finite arithmetic effect |
73 |
| 708/311 |
Frequency detection |
50 |
| 708/312 |
Tone detection |
61 |
| 708/309 |
Frequency measurement |
39 |
| 708/316 |
Having multiplexing |
162 |
| 708/305 |
Initialization |
27 |
| 708/318 |
Lattice |
32 |
| 708/314 |
Matched filter type |
82 |
| 708/303 |
Microprocessor |
48 |
| 708/308 |
Multidimensional data |
88 |
| 708/304 |
Nonlinear (e.g., median, etc.) |
51 |
| 708/321 |
Nontime domain |
52 |
| 708/320 |
Recursive |
186 |
| 708/301 |
Tapped delay line |
62 |
| 708/319 |
Transversal |
428 |
| 708/317 |
Wave |
27 |
| 708/204 |
Format conversion |
152 |
| 708/205 |
Normalization |
130 |
| 708/270 |
Function generation |
148 |
| 708/275 |
Circular |
20 |
| 708/273 |
Counter as source (i.e., input) |
16 |
| 708/271 |
Direct digital frequency synthesizer |
78 |
| 708/274 |
Linear |
63 |
| 708/277 |
Logarithmic/exponential |
85 |
| 708/272 |
Memory used to store waveshape |
77 |
| 708/276 |
Trigonometric |
202 |
| 708/444 |
Integration |
42 |
| 708/290 |
Interpolation/extrapolation |
276 |
| 708/207 |
Maximum/minimum determination |
91 |
| 708/202 |
Median |
28 |
| 708/230 |
Multifunctional |
139 |
| 708/232 |
Array of elements (e.g., and/or array, etc.) |
157 |
| 708/231 |
Microprocessor |
31 |
| 708/236 |
More than two operands |
16 |
| 708/234 |
Parallel bit input of operand |
19 |
| 708/233 |
Pipeline |
37 |
| 708/235 |
Uses look-up table |
43 |
| 708/250 |
Random number generation |
421 |
| 708/252 |
Linear feedback shift register |
142 |
| 708/251 |
Oscillator controlled |
56 |
| 708/253 |
Plural parallel outputs bits |
50 |
| 708/256 |
Plural parallel outputs |
46 |
| 708/254 |
Seed value controls |
46 |
| 708/255 |
Truly random number |
62 |
| 708/208 |
Scaling |
39 |
| 708/209 |
Shifting |
228 |
| 708/446 |
Solving equation |
106 |
| 708/400 |
Transform |
205 |
| 708/402 |
Discrete cosine transform (i.e., dct) |
232 |
| 708/403 |
Fourier |
103 |
| 708/409 |
Butterfly circuit |
52 |
| 708/405 |
Discrete fourier transform (i.e., dft) |
120 |
| 708/404 |
Fast fourier transform (i.e., fft) |
224 |
| 708/406 |
Pipeline |
38 |
| 708/408 |
Radix greater than two |
27 |
| 708/407 |
Systolic |
6 |
| 708/401 |
Multidimensional |
123 |
| 708/410 |
Walsh |
51 |
| 708/206 |
Unit conversion |
37 |
| 708/104 |
Plural complete computers |
18 |
| 708/130 |
Programmable calculator |
97 |
| 708/101 |
Pulse repetition rate |
41 |
| 708/102 |
Digital differential analyzer |
25 |
| 708/103 |
Multiplication or division |
109 |
| 708/1 |
Electrical hybrid calculating computer |
31 |
| 708/3 |
Particular function performed |
173 |
| 708/5 |
Correlation, convolution, or transformation |
104 |
| 708/4 |
Evaluation of trigonometric function |
31 |
| 708/8 |
Function generation |
74 |
| 708/9 |
Piece-wise linear synthesis |
25 |
| 708/6 |
Integration or differentiation |
22 |
| 708/7 |
Multiplication or division |
83 |
| 708/2 |
Plural complete computers |
8 |
