Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Patent
1997-07-28
2000-07-04
Ngo, Chuong Dinh
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Particular function performed
708517, G06F 1710, G06F 700
Patent
active
060852097
ABSTRACT:
A method and system for an IIR filter are provided. A sequence of input signals is converted to a first sequence of log signals, while a sequence of feedback signals is converted to a second sequence of log signals. IIR filtering coefficients are then added to each sequence of log signals to generate a plurality of term signals. The term signals are then converted to inverse-log signals which are summed to produce an output signal. The log/inverse-log conversions of signals are based on estimating a log/inverse-log function using a second-order polynomial.
REFERENCES:
patent: 4305133 (1981-12-01), Amada et al.
patent: 4682302 (1987-07-01), Williams
patent: 4720809 (1988-01-01), Taylor
patent: 5042001 (1991-08-01), Brightman et al.
patent: 5068816 (1991-11-01), Noetzel
patent: 5157623 (1992-10-01), Hayashi
patent: 5331582 (1994-07-01), Sudo et al.
A 10-ns Hybrid Number System Data Execution Unit for Digital Signal Processing Systems by Fang-shi Lai, IEEE Journal of Solid-State Circuits, vol. 26, No. 4, Apr. 1991, pp. 590-599.
A Hybrid Number System Processor with Geometric and Complex Arithmetic Capabilities by Fang-shi Lai, and Ching-Farn Eric Wu, IEEE Transactions on Computers, vol. 40, No. 8, Aug. 1991, pp. 952-960.
A 3.84 GIPS Integrated Memory Array Processor with 64 Processing Elements and a 2-Mb SRAM by Nobuyuki Yamashita, Tohru Kimura, Yoshihiro Fujita, Yoshiharu Aimoto, Takashi Manabe, Shin'ichiro Okazaki, Kazuyuki Nakamura, and Masakazu Yamashina, IEEE Journal of Solid-State Circuits, vol. 29, No. 11, Nov. 1994, pp. 1336-1343.
"The Efficient Implementation and Analysis of a Hybrid Number System Processor" by Fang-shi Lai, IEEE Transactions on Circuits and Systems-II: Analog and Digital Signal Processing, vol. 40, No. 6, Jun. 1993.
Gauger James E.
Motorola Inc.
Ngo Chuong Dinh
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