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Class Information
Number: 708/552
Name: Electrical computers: arithmetic processing and calculating > Electrical digital calculating computer > Particular function performed > Arithmetical operation > Compensation for finite word length > Overflow or underflow
Description: Subject matter wherein the modification is necessary because the word is either too large or too small to be represented using the fixed word length.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7580967 |
Processor with maximum and minimum instructions |
Aug. 25, 2009 |
| 7543014 |
Saturated arithmetic in a processing unit |
Jun. 2, 2009 |
| 7467178 |
Dual mode arithmetic saturation processing |
Dec. 16, 2008 |
| 7461118 |
Arithmetic logic unit with merged circuitry for comparison, minimum/maximum selection and saturation for signed and unsigned numbers |
Dec. 2, 2008 |
| 7428567 |
Arithmetic unit for addition or subtraction with preliminary saturation detection |
Sep. 23, 2008 |
| 7177893 |
High-efficiency saturating operator |
Feb. 13, 2007 |
| 7171438 |
Method for recognition of full-word saturating addition and subtraction |
Jan. 30, 2007 |
| 7149766 |
Methods for detecting overflow and/or underflow in a fixed length binary field |
Dec. 12, 2006 |
| 7089277 |
Computation circuit having dynamic range extension function |
Aug. 8, 2006 |
| RE39121 |
Processor which can favorably execute a rounding process composed of positive conversion and saturated calculation processing |
Jun. 6, 2006 |
| 7051062 |
Apparatus and method for adding multiple-bit binary-strings |
May. 23, 2006 |
| 7047270 |
Reporting a saturated counter value |
May. 16, 2006 |
| 7013321 |
Methods and apparatus for performing parallel integer multiply accumulate operations |
Mar. 14, 2006 |
| 6993545 |
Digital filter with protection against overflow oscillation |
Jan. 31, 2006 |
| 6983300 |
Arithmetic unit |
Jan. 3, 2006 |
| 6947962 |
Overflow prediction algorithm and logic for high speed arithmetic units |
Sep. 20, 2005 |
| 6941329 |
Digital method for increasing the calculation accuracy in non-linear functions and hardware architecture for carrying out said method |
Sep. 6, 2005 |
| 6718357 |
Microcomputer including an upper and lower clip circuit |
Apr. 6, 2004 |
| 6535900 |
Accumulation saturation by means of feedback |
Mar. 18, 2003 |
| 6532486 |
Apparatus and method for saturating data in register |
Mar. 11, 2003 |
| 6529930 |
Methods and apparatus for performing a signed saturation operation |
Mar. 4, 2003 |
| 6519620 |
Saturation select apparatus and method therefor |
Feb. 11, 2003 |
| 6499046 |
Saturation detection apparatus and method therefor |
Dec. 24, 2002 |
| 6334135 |
Data processing system and register file |
Dec. 25, 2001 |
| 6321248 |
Process for determining an overflow to the format of the result of an arithmetic operation carried out on two operands |
Nov. 20, 2001 |
| 6314443 |
Double/saturate/add/saturate and double/saturate/subtract/saturate operations in a data processing system |
Nov. 6, 2001 |
| 6301600 |
Method and apparatus for dynamic partitionable saturating adder/subtractor |
Oct. 9, 2001 |
| 6301597 |
Method and apparatus for saturation in an N-NARY adder/subtractor |
Oct. 9, 2001 |
| 6282558 |
Data processing system and register file |
Aug. 28, 2001 |
| 6275840 |
Fast overflow detection in decoded bit-vector addition |
Aug. 14, 2001 |
| 6237084 |
Processor which can favorably execute a rounding process composed of positive conversion and saturated calculation processing |
May. 22, 2001 |
| 6226663 |
Method and apparatus for overflow detection in a decimation filter |
May. 1, 2001 |
| 6219685 |
Method to detect IEEE overflow and underflow conditions |
Apr. 17, 2001 |
| 6209017 |
High speed digital signal processor |
Mar. 27, 2001 |
| 6202077 |
SIMD data processing extended precision arithmetic operand format |
Mar. 13, 2001 |
| 6195672 |
Saturation detection in floating point to integer conversions |
Feb. 27, 2001 |
| 6188240 |
Programmable function block |
Feb. 13, 2001 |
| 6182105 |
Multiple-operand addition with intermediate saturation |
Jan. 30, 2001 |
| 6151616 |
Method and circuit for detecting overflow in operand multiplication |
Nov. 21, 2000 |
| 6115731 |
Scalable overflow clamp and method for a digital gain scaler/summer |
Sep. 5, 2000 |
| 6112220 |
Programmable overflow protection in digital processing |
Aug. 29, 2000 |
| 6108772 |
Method and apparatus for supporting multiple floating point processing models |
Aug. 22, 2000 |
| 6078940 |
Microprocessor with an instruction for multiply and left shift with saturate |
Jun. 20, 2000 |
| 6061781 |
Concurrent execution of divide microinstructions in floating point unit and overflow detection microinstructions in integer unit for integer divide |
May. 9, 2000 |
| 6037947 |
Graphics accelerator with shift count generation for handling potential fixed-point numeric overflows |
Mar. 14, 2000 |
| 6012077 |
Method and apparatus for indicating overflow status of bit-variable data employing pipelining adder |
Jan. 4, 2000 |
| 5974540 |
Processor which can favorably execute a rounding process composed of positive conversion and saturated calculation processing |
Oct. 26, 1999 |
| 5944775 |
Sum-of-products arithmetic unit |
Aug. 31, 1999 |
| 5936870 |
Arithmetic operating device for digital signal processing and method therefor |
Aug. 10, 1999 |
| 5917740 |
Apparatus for reducing a computational result to the range boundaries of a signed 16-bit integer in case of overflow |
Jun. 29, 1999 |
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