Digital signal processor with search function
AssigneeTEAC Corporation
InventorTakashi Miyamoto
Life of this patent
Estimating the term…
Abstract
A device that enables easy, reliably performance of a search at a desired position even in the case of a one-bit digital signal. A control section of a digital signal processing device extracts a one-bit digital signal of a predetermined period from a memory section at a position designated by a jog dial and iteratively outputs the signal to a multi-bit converter. The multi-bit converter converts the one-bit digital signal into a multi-bit signal, and a multiplier subjects the multi-bit signal to fade-in and fade-out processing. A ΔΣ modulator re-converts the thus-processed signal into the one-bit digital signal, outputting the digital signal.
Claims8
A digital signal processor with a search function comprising:
- memory means that stores a one-bit digital signal;
- a jog dial that can be rotatively actuated by a user;
- control means that extracts from the memory means the one-bit digital signal of a predetermined period with reference to a position designated by rotative actuation of the jog dial;
- conversion means for converting the extracted one-bit digital signal into a multi-bit signal;
- multiplication means that multiplies a beginning of the multi-bit signal by a fade factor to thus perform fade-in processing at the beginning of the multi-bit signal and that multiplies an end of the multi-bit signal by the fade factor to thus perform fade-out processing at the end of the multi-bit signal;
- and
- ΔΣ modulation means that re-converts the multi-bit signal from the multiplication means into a one-bit digital signal and that outputs the re-converted signal, wherein
- the control means iteratively outputs the one-bit digital signal of a predetermined period to the conversion means at a predetermined interval.
Dependencies are inferred from the claim text.