| |
 |
|
|
|
|
Technology Offer |
 |
 |
|
|
 |
|
| Title : Signal amplifying method, signal amplifier and devices related therewith |
|
Status |
Patented |
Part |
Elec/ET |
|
Conditon |
Licensing |
Estimated Cost |
0 US$ |
|
|
An analog signal amplifying method, an amplifier to output a first pulse of high level by comparing an input signal with a first sawtooth-wave having an amplitude greater than that of the input signal and determining that the first sawtooth-wave is greater than the input signal; to output a narrower second pulse of one short type at every starting point of the high region of the first pulse; to continuously extract an output voltage by corresponding the second sawtooth-wave having a period identical to that of the first sawtooth-wave with a high point of the second pulse and sampling the second sawtooth-wave voltage positions at the corresponded parts; to change the extracted voltage to a condenser by a high speed switch to maintain it constant; and to eliminate a valley of a waveform, thereby performing a convenient filtering process, whereby the invention can obtain good linearity of the first sawtooth-wave very easily, with neither restrictions to an input voltage range nor use of a negative feedback, to thereby basically solve the distortion problem caused by the time delay, easily perform a filtration without any deformations in the waveform due to a lower rate of a high frequency containing component that results in little distortion. And the digital signal is directly connected to the amplifier of the invention without a D/A conversion unit in the contemporary digital reviving device (for instance, CDP), so that it is realized to effectively reproduce signals without any deformation in shape and it is relatively possible to further simplify the structure of the circuit.
US patented 6,628,221
|
 Images 1)
us006628221-001.tif |
| |
|
|
|
 |
 |
|
 |
|
|
 |
DOWON INTERNATIONAL
5F. Shinwon Bldg. 823-14, Yeoksam-dong, Kangnam-ku, SEOUL, 135-080
KOREA
PHONE : 82-2-501-3106 FAX : 82-2-501-3109 e-mail : patyellow@dowon.com
|
|
|
|
|
