Spectra, Inc. is contributing as a development partner with proven ability, assisting high-tech enterprises and research institutions in the field of digital signal processing.
Our company has a firm philosophy of technology, boldly challenging even newer fields and even more advanced high-tech regions, and moving steadily forward towards further progress.
We offer wide range of development such as high-reliability system for public infrastructure, sophisticated system for research institutions and low-cost low-power-consumption products for consumer use.
The followings are some of our development results.
There are many more that are not described in the list. Please feel free to inquire.
W-CDMA/HS-DPA UE device Radio propagation path simulator Power line OFDM modem Power line QPSK modem π/4 shift QPSK wireless modem Wireless OFDM transmitter and receiver Wireless LAN GMSK wireless modem GFSK wireless modem D8PSK wireless modem 16QAM wireless modem V.26 modem V.27bis modem Project25 digital communication system Underwater ultrasonic acoustic modem High-speed GMSK modem Low bit rate MSK demodulator for railway High-speed equalizer control device for wireless Digital receiver/digital transmitter Infrared communication system Multiple access TDMA communication system HF Band SSB/CW/AM transceiver |
Noise canceller with adaptive control for optical communications Broadband AM receiver AMI system long-distance data transmission device Software radio (speech and data) Echo canceller for satellite communications Telephone line echo canceller Blind equalizer Wireless repeater with adaptive control Underwater cabled data transmission device Hard-decision BCH code Soft-decision BCH code Shortened BCH code Extended BCH code Reed-Solomon code Reed-Muller code Convolutional code Trellis Code Modulation (TCM) Viterbi decoding Turbo code CRC Compander/Expander Telephone testing device Lossless data compression/expansion |
Servo control Multichannel high-speed FFT device (FPGA) Multichannel high-speed digital filter (FPGA) Vibrometer Laser marking device Laser irradiation noncontact remote vibration measurement device Frequency analysis Various kinds of digital filters Adaptive prediction Shoplifting detector |
Micro machine control Optical fiber cable inspection device Optical fiber cable monitoring device Power line monitoring device Railway ATS Railway ATC Railway track circuit monitoring device Sound source tracking type monitoring camera mount control Signal processing board for cosmic-ray observation Low-latency realtime simulator for digital twin system |
Fast Fourier Transform Various kinds of digital filter design and mounting Lossless data compression and expansion C54x multi DSP board C6x parallel processing DSP board DSP evaluation board Daughter board for EVM (high frequency processing) Daughter board for DSK (high frequency processing) Signal processing algorithm development for special application |
Voiced sound detection system VOX Speech analyzer Speech synthesizer Low bit rate speech codec G.726 codec Low bit rate ADPCM codec Low bit rate ADM codec |
Voice converter Wide range speech rate converter Voice scrambler Helium speech reconstructor Voice detector IC compatible ADPCM codec |
Four ear type high accuracy sound source localizer Two ear type sound source localizer Wiener filter noise canceller Spectrum subtraction noise canceller Adaptive filter noise canceller Irregular large amplitude noise suppressor Noise floor suppressor |
Microphone frequency characteristics corrector Acoustic echo canceller Howling canceller Audio signal generator Microphone beamforming Digital limiter Speech multiplexer Underwater acoustic analyzer |
Image recognition Image analysis Various kinds of filtering Various kinds of image conversion Feature extraction Image measurement Image processing Food quality judgment device |