Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7372384 | High-speed, high-resolution, low-power analog-to-digital converter An ADC and method comprises a hybrid-type sigma-delta modulator comprising a digital delta-stage and an analog sigma-stage, wherein the analog sigma-stage comprises an analog low-pass filter adapted to only pass a low frequency audio band between 0-20 khz of a PWM w... | 05/13/2008 |
| 4099163 | Method and apparatus for digital data transmission in television receiver remote control systems Method and apparatus for serial data transmission wherein each data word has a fixed bit length and each bit is transmitted during a fixed duration data period following a sync pulse. The sync pulse for each data word has a duration equal to a data period... | 07/04/1978 |
