| 1/00 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) |
| 1/02 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Reversible analogue/digital converters |
| 1/04 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) using stochastic techniques |
| 1/06 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Continuously compensating for, or preventing, undesired influence of physical parameters (periodically H03M 1/1) |
| 1/08 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Continuously compensating for, or preventing, undesired influence of physical parameters (periodically H03M 1/1) of noise |
| 1/10 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Calibration or testing |
| 1/12 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Analogue/digital converters (H03M 1/02-H03M 1/1 take precedence) |
| 1/14 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Analogue/digital converters (H03M 1/02-H03M 1/1 take precedence) Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit |
| 1/16 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Analogue/digital converters (H03M 1/02-H03M 1/1 take precedence) Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit with scale factor modification, i.e. by changing the amplification between the steps |
| 1/18 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Analogue/digital converters (H03M 1/02-H03M 1/1 take precedence) Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging |
| 1/20 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Analogue/digital converters (H03M 1/02-H03M 1/1 take precedence) Increasing resolution using an n bit system to obtain n + m bits, e.g. by dithering |
| 1/22 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Analogue/digital converters (H03M 1/02-H03M 1/1 take precedence) pattern-reading type |
| 1/24 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Analogue/digital converters (H03M 1/02-H03M 1/1 take precedence) pattern-reading type using relatively movable reader and disc or strip |
| 1/26 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Analogue/digital converters (H03M 1/02-H03M 1/1 take precedence) pattern-reading type using relatively movable reader and disc or strip with weighted coding, i.e. the weight given to a digit depends on the position of the digit within the block or code word, e.g. there is a given radix and the weights are powers of this radix |
| 1/28 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Analogue/digital converters (H03M 1/02-H03M 1/1 take precedence) pattern-reading type using relatively movable reader and disc or strip with non-weighted coding |
| 1/30 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Analogue/digital converters (H03M 1/02-H03M 1/1 take precedence) pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental |
| 1/32 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Analogue/digital converters (H03M 1/02-H03M 1/1 take precedence) pattern-reading type using cathode-ray tubes |
| 1/34 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Analogue/digital converters (H03M 1/02-H03M 1/1 take precedence) Analogue value compared with reference values (H03M 1/48 takes precedence) |
| 1/36 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Analogue/digital converters (H03M 1/02-H03M 1/1 take precedence) Analogue value compared with reference values (H03M 1/48 takes precedence) simultaneously only, i.e. parallel type |
| 1/38 | Analogue/digital conversion; Digital/analogue conversion (conversion of analogue values to or from differential modulation H03M 3/00) Analogue/digital converters (H03M 1/02-H03M 1/1 take precedence) Analogue value compared with reference values (H03M 1/48 takes precedence) sequentially only, e.g. successive approximation type (converting more than one bit per step H03M 1/14) |