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US 7,443,326 B2Granted
Digital input signals constructor providing analog representation thereof
OwnerDan Raphaeliinventor
Life of this patent
Estimating the term…
Abstract
A digital to analog waveform converter featuring a DSP, discrete output devices, and Multi Input Multi Output (MIMO) device, wherein the MIMO device includes low accuracy components featuring high speed and low power.
Claims47
A method for converting at least one digital input signal to at least one analog representation signal thereof, comprising:
- (a) feeding a DSP with said at least one digital input signal and a synchronization clock,
- (b) repeatedly identifying a model of a digital to analog waveform converter for creating a representation of the relationships between said DSP digital outputs and at least one of said at least one analog representation signal, wherein said digital to analog waveform converter comprises discrete output devices and a MIMO system,
- (c) said DSP is calculating n digital outputs, by using said at least one digital input signal and the identified model of said digital to analog waveform converter,
- (d) said n digital outputs are received by k discrete output devices comprising in total:
- n digital inputs, m analog outputs, and simple conversion rules between said n digital inputs and said m analog outputs,
- (e) said MIMO system receiving said m analog outputs, and providing at least one output analog signal equivalent to said at least one digital input signal.
3 more elements
A method comprising:
- (a) feeding a DSP with at least one digital input signal and synchronization clock,
- (b) occasionally or within a repetitive training period, said DSP is identifying a model of a digital to analog waveform converter wherein said digital to analog waveform converter comprises at least one discrete output device and m MIMO stages, and whereby the model represents the relationships between digital outputs of said DSP and at least one analog output signal of the m MIMO stages,
- (c) calculating n digital outputs, by using said at least one digital input signal and the identified model,
- (d) said n digital outputs are received by said at least one discrete output device comprising, in total, n digital inputs, m analog outputs, and simple conversion rules between said n digital inputs and said m analog outputs,
- (e) corresponding MIMO stage to each one of said m analog outputs, excluding first MIMO stage, are receiving at least one analog input signal from the preceding stage and the appropriate analog signal said at least one discrete output device;
- first MIMO stage is receiving only the appropriate analog signal from said at least one discrete output device;
- all m MIMO stages are providing at least one output analog signal;
- last MIMO stage is providing at least one output analog signal equivalent to said digital input signal.
5 more elements
A parallel multi-stage digital to analog waveform converter, comprising:
- (a) plurality of digital to analog waveform converters receiving at least two different digital input signals,
- (b) said plurality of digital to analog waveform converters are placed on the same silicon substrate, featuring crosstalk between themselves,
- (c) a common DSP, whereby said DSP is treating said crosstalk effect, whereby each of the plurality of the digital to analog waveform converters comprises:
- amplifier amplifying an input signal, integration means for integrating the amplified signal, means for adding predefined, corrections to the amplified signal, a synchronization clock.
1 more element
A device comprising:
- (a) a digital to analog waveform converter comprising:
- (i) at least one discrete output device and (ii) a MIMO device;
- said discrete output device comprising simple conversion rules between said digital inputs and said analog outputs;
- said discrete output device is connected to said MIMO device;
- and said MIMO device comprising at least one analog input and at least one analog output;
- (b) a DSP connected to at least one digital input signal, a synchronization clock and at least one discrete output device, whereby said DSP, occasionally or within a repetitive training period, is identifying a model of said digital to analog waveform converter for creating a representation of the relationships between said digital outputs of said DSP and at least one of the analog output signals of said MIMO device;
- whereby said DSP while not in training mode is calculating the appropriate input to the at least one discrete output device using said model to provide at least one output analog signal equivalent to said digital input signal.
4 more elements
A method comprising:
- (a) feeding a DSP with said at least one digital input signal and a synchronization clock,
- (b) calculating, by said DSP, a digital outputs, by using said at least one digital input signal and a digital to analog waveform converter model,
- (c) receiving by k discrete output devices said n digital outputs, said k discrete output devices comprising, in total, n digital inputs, in analog outputs, and simple conversion rules between said n digital inputs and said m analog outputs,
- (d) receiving by a MIMO system said m analog outputs, and providing at least one output analog signal equivalent to said at least one digital input signal.
1 more element
A multi-stage digital to analog waveform converter comprising stages, wherein each stage comprises:
- (a) amplifier amplifying an input signal,
- (b) means for approximately integrating the amplified signal,
- (c) a clock for synchronizing said stage,
- (d) means for adding at least one predefined correction to said amplified signal, wherein multi-stage digital to analog waveform converter further comprising digital signal processing means calculating said corrections by utilizing the relationships between the corrections and at least one of the amplified signals.
1 more element
Dependencies are inferred from the claim text.