US Patent Class 341
CODED DATA GENERATION OR CONVERSION
 Electronic File Wrappers |  Electronic Patent Documents |  Paper Patent Documents | Current as of: June, 1999
|  and Services |
| Electronic File Wrappers | Electronic Patent Documents | Paper Patent Documents | Current as of: June, 1999
| and Services |
| DF | CLASS NOTES | |
| 1 | DF | DIGITAL PATTERN READING TYPE CONVERTER |
| 2 | DF | .~ Plural denominationally related carriers (e.g., coarse/fine geared discs) |
| 3 | DF | .~ Plural types of codes on single carrier |
| 4 | DF | .~ According to nonlinear function |
| 5 | DF | .~ For X or Y coordinate determination (e.g., stylus-pad) |
| 6 | DF | .~ With directional discrimination |
| 7 | DF | .~ Antiambiguity feature |
| 8 | DF | .~ Real and complementary patterns |
| 9 | DF | .~ Having combined (e.g., denominational, combination code) coding pattern |
| 10 | DF | .~.~ Constant distance code |
| 11 | DF | .~ Incremental |
| 12 | DF | .~ Cathode ray |
| 13 | DF | .~ Optical |
| 14 | DF | .~.~ Having optical waveguide |
| 15 | DF | .~ Magnetic, inductive or capacitive |
| 16 | DF | .~ Brush and contacts or conductive pattern |
| 17 | DF | .~ Actuated by physical projection |
| 20 | DF | BODILY ACTUATED CODE GENERATOR |
| 21 | DF | .~ For handicapped user |
| 22 | DF | .~ Including keyboard or keypad |
| 23 | DF | .~.~ Variable key legends |
| 24 | DF | .~.~ With error prevention means (e.g., debounce, antichatter) |
| 25 | DF | .~.~.~ With rollover feature (i.e., antidoublestrike) |
| 26 | DF | .~.~ With particular key scanning feature |
| 27 | DF | .~.~ With audible or tactile indicator |
| 28 | DF | .~.~ For pictorial or ideographic characters (e.g., design, chinese or japanese characters) |
| 29 | DF | .~.~ With variable pulse spacing or grouping |
| 30 | DF | .~.~ For numerical pulse type transmission |
| 31 | DF | .~.~ Photoelectric actuation |
| 32 | DF | .~.~ Magnetic or inductive actuation |
| 33 | DF | .~.~ Capacitive actuation |
| 34 | DF | .~.~ Pressure sensitive actuation |
| 35 | DF | .~ With rotary dial |
| 50 | DF | DIGITAL CODE TO DIGITAL CODE CONVERTERS |
| 51 | DF | .~ Adaptive coding |
| 52 | DF | .~ To or from particular bit symbol |
| 53 | DF | .~.~ Bit represented by pulse width |
| 54 | DF | .~.~ Bit represented by discrete frequency |
| 55 | DF | .~ Substituting specified bit combinations for other prescribed bit combinations |
| 56 | DF | .~ To or from multi-level codes |
| 57 | DF | .~.~ Binary to or from ternary |
| 58 | DF | .~ To or from minimum d.c. level codes |
| 59 | DF | .~ To or from run length limited codes |
| 60 | DF | .~ To or from packed format |
| 61 | DF | .~ Data rate conversion |
| 62 | DF | .~ BCD (binary-coded-decimal) to or from decimal |
| 63 | DF | .~ To or from bit count codes |
| 64 | DF | .~ To or from number of pulses |
| 65 | DF | .~.~ To or from Huffman codes |
| 66 | DF | .~.~ To or from Morse code |
| 67 | DF | .~ To or from variable length codes |
| 68 | DF | .~ To or from NRZ (nonreturn-to-zero) codes |
| 69 | DF | .~.~ Return-to-zero to or from NRZ (nonreturn-to-zero) codes |
| 70 | DF | .~.~ To or from bi-phase level code (e.g., split phase code, Manchester code) |
| 71 | DF | .~.~ To or from bi-phase space or mark codes (e.g., double frequency code, FM code) |
| 72 | DF | .~.~ To or from delay modulation code (e.g., Miller code, three frequency code, MFM code) |
| 73 | DF | .~.~ To or from coded mark inversion |
| 74 | DF | .~.~ To or from double density code |
| 75 | DF | .~ To or from nonlinear codes |
| 76 | DF | .~ To or from differential codes |
| 77 | DF | .~.~ To or from delta modulation codes |
| 78 | DF | .~ Programmable structure |
| 79 | DF | .~ Tree structure |
| 80 | DF | .~ To or from fibonacci codes |
| 81 | DF | .~ To or from interleaved format |
| 82 | DF | .~ To or from mixed code formats |
| 83 | DF | .~ To or from mixed base codes |
| 84 | DF | .~.~ Binary to BCD (binary-coded decimal) |
| 85 | DF | .~.~ BCD (binary-coded decimal) to binary |
| 86 | DF | .~ Generator runs until new code is generated |
| 87 | DF | .~ Unnecessary data suppression |
| 88 | DF | .~ Multiple conversions using same converter |
| 89 | DF | .~ Reversible converters |
| 90 | DF | .~ To or from alphanumeric code formats |
| 91 | DF | .~.~ To or from Baudot code |
| 92 | DF | .~.~ To or from Hollerith code |
| 93 | DF | .~ Complementers |
| 94 | DF | .~ With error detection or correction |
| 95 | DF | .~ Byte length changed |
| 96 | DF | .~ To or from constant distance codes |
| 97 | DF | .~.~ Gray to binary |
| 98 | DF | .~.~ Binary to Gray |
| 99 | DF | .~ To or from display device codes |
| 100 | DF | .~ Serial to parallel |
| 101 | DF | .~ Parallel to serial |
| 102 | DF | .~ To or from "N" out of "M" codes |
| 103 | DF | .~.~ "N" out of "M" to "X" out of "Y" |
| 104 | DF | .~ Binary to decimal |
| 105 | DF | .~ Decimal to binary |
| 106 | DF | .~ Coding by table look-up techniques |
| 107 | DF | .~ To or from code based on probability |
| 108 | DF | REVERSIBLE ANALOG TO DIGITAL CONVERTERS |
| 109 | DF | STOCHASTIC TECHNIQUES |
| 110 | DF | ANALOG TO DIGITAL CONVERSION FOLLOWED BY DIGITAL TO ANALOG CONVERSION |
| 111 | DF | PHASE OR TIME OF PHASE CHANGE |
| 112 | DF | .~ Synchro or resolver signal |
| 113 | DF | .~.~ Coarse and fine |
| 114 | DF | .~.~ Control system |
| 115 | DF | .~.~ Converter compensation |
| 116 | DF | .~.~ Analog resolver or synchro signal to digital signal |
| 117 | DF | .~.~ Digital signal to analog resolver or synchro signal |
| 118 | DF | CONVERTER COMPENSATION |
| 119 | DF | .~ Temperature compensation |
| 120 | DF | CONVERTER CALIBRATION OR TESTING |
| 121 | DF | .~ Trimming control circuits |
| 122 | DF | SAMPLE AND HOLD |
| 123 | DF | .~ Having variable sampling rate |
| 124 | DF | .~ Sampled and held input signal with linear return to datum |
| 125 | DF | .~ Sampled and held input signal with nonlinear return to datum |
| 126 | DF | ANALOG TO OR FROM DIGITAL CONVERSION |
| 127 | DF | .~ Bipolar |
| 128 | DF | .~.~ Dual slope analog to digital converter |
| 129 | DF | .~.~ Plural slope analog to digital converter |
| 130 | DF | .~ Difunction code as output |
| 131 | DF | .~ Increasing converter resolution (e.g., dithering) |
| 132 | DF | .~ Detecting analog signal peak |
| 133 | DF | .~ With particular solid state devices (e.g., Gunn effect device, Josephson device, drift transistor, using solid state active devices as impedances) with other at longer intervals) |
| 134 | DF | .~.~ Integrated injection logic |
| 135 | DF | .~.~ Current mirror |
| 136 | DF | .~.~ Field effect transistor |
| 137 | DF | .~ Using optical device, (e.g., fiber optics, cathode ray tubes) |
| 138 | DF | .~ Nonlinear |
| 139 | DF | .~.~ Automatic control for increasing converter range (e.g., gain ranging, automatic gain control) |
| 140 | DF | .~.~ Linearization (e.g., nonlinear transfer characteristic compensates for nonlinear transducer) |
| 141 | DF | .~ Multiplex |
| 142 | DF | .~ Converter is part of control loop |
| 143 | DF | .~ Differential encoder and/or decoder (e.g., delta modulation, differential pulse code modulation) |
| 144 | DF | .~ Digital to analog conversion |
| 145 | DF | .~.~ Coarse and fine conversions |
| 146 | DF | .~.~ Serial conversion |
| 147 | DF | .~.~ Function generator |
| 148 | DF | .~.~ Tree structure |
| 149 | DF | .~.~ Using magnetic or cryogenic components |
| 150 | DF | .~.~ Using charge coupled devices or switched capacitances |
| 151 | DF | .~.~ Analog output represents a displacement or force |
| 152 | DF | .~.~ With intermediate conversion of digital value to time interval |
| 153 | DF | .~.~ Using weighted impedances |
| 154 | DF | .~.~ Using ladder network |
| 155 | DF | .~ Analog to digital conversion |
| 156 | DF | .~.~ Coarse and fine conversions |
| 157 | DF | .~.~ Intermediate conversion to frequency or number of pulses |
| 158 | DF | .~.~ Analog input compared with static reference |
| 159 | DF | .~.~.~ Parallel type |
| 160 | DF | .~.~.~.~ Including priority encoder |
| 161 | DF | .~.~.~ Acting sequentially |
| 162 | DF | .~.~.~ Serial conversions with change in signal |
| 163 | DF | .~.~.~ Recirculating |
| 164 | DF | .~.~.~ Single comparator and counter |
| 165 | DF | .~.~.~ Single comparator and digital storage |
| 166 | DF | .~.~ Intermediate conversion to time interval |
| 167 | DF | .~.~.~ Dual slope |
| 168 | DF | .~.~.~ Plural slope |
| 169 | DF | .~.~.~ Input signal compared with linear ramp |
| 170 | DF | .~.~.~ Input signal compared with nonlinear ramp |
| 171 | DF | .~.~ Using magnetic or cryogenic components |
| 172 | DF | .~.~ Using charge transfer devices (e.g., charge coupled devices, charge transfer by switched capacitances) |
| 173 | DF | CODE GENERATOR OR TRANSMITTER |
| 174 | DF | .~ Plural transmitters |
| 175 | DF | .~ With code display at transmitter |
| 176 | DF | .~ Transmitter for remote control signal |
| 177 | DF | .~ Producing different pulse frequencies |
| 178 | DF | .~ With variable pulse spacing or grouping |
| 179 | DF | .~.~ Plural pulse shapes |
| 180 | DF | .~.~ Plural channels |
| 181 | DF | .~.~ Carrier frequency variation |
| 182 | DF | .~.~ With variable pulse length |
| 183 | DF | .~.~ Pulse presence or absence in equal length code |
| 184 | DF | .~ Numerical pulse type |
| 185 | DF | .~.~ Multistage |
| 186 | DF | .~.~ With gaseous or space discharge device |
| 187 | DF | .~.~ Having counter or register |
| 188 | DF | .~.~ Serial pulse number actuation |
| 189 | DF | .~.~ Pulse gating |
| 190 | DF | .~.~ Mechanical switch feature |
| 191 | DF | .~ With gaseous or space discharge device feature |
| 192 | DF | .~ With rotary distributor |
| 200 | DF | QUANTIZER |
| 899 | DF | MISCELLANEOUS |