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