Arithmetical Operation Patents (Class 708/490)
- Compensation for finite word length (Class 708/496)
- Evaluation of root (Class 708/500)
- Multiplication followed by addition (Class 708/501)
- Reciprocal (Class 708/502)
- Multiplication (Class 708/503)
- Division (Class 708/504)
- Addition or subtraction (Class 708/505)
- Feedback (Class 708/506)
- Parallel (Class 708/507)
- Pipeline (Class 708/508)
- Systolic (Class 708/509)
- Microprocessor (Class 708/510)
- Complex number format (Class 708/511)
- Logarithmic format (Class 708/512)
- Variable length or precision (Class 708/513)
- Matrix array (Class 708/514)
- Comparison (Class 708/671)
- Incrementation/decrementation (Class 708/672)
- Radix correction (Class 708/673)
- Signal amplitude (Class 708/675)
- Microwave (Class 708/676)
- Cryogenic (Class 708/677)
- By electronic tube (Class 708/678)
- Magnetic (Class 708/679)
- Decimal (Class 708/680)
- Coded decimal (Class 708/683)
- Binary (Class 708/700)