Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Application No. | Application Title | Issue Date |
| 20080240370 | Testing acoustic echo cancellation and interference in VoIP telephones Described is automatically testing the quality of an audio coupling between juxtaposed first and second digital telephones, e.g., VoIP telephones, such as to quantitatively determine the quality of audio echo cancellers in those digital telephones. An analyzer receives ... | 10/02/2008 |
| 20080101550 | Method and apparatus for line testing A method of testing a communication line includes applying a voltage as a function of time on the communication line and measuring at least a first current and a second current flowing via the communication line. The second current is measured at a different point in ti... | 05/01/2008 |
| 20070041511 | Apparatus and method for processing a signal under test for measuring the impedance of a device under test A method and apparatus adapted to calibrate a test probe and oscilloscope system such that digital samples of a signal under test acquired by the system are processed for representing the impedance of a device under test. The method and apparatus calibrates the test pro... | 02/22/2007 |
| 20070041512 | Calibration method and apparatus A method and apparatus adapted to calibrate a test probe and oscilloscope system such that loading effects of the probe are substantially removed from the measurement. A signal under test from a device under test is coupled to the test probe and used with selectable imp... | 02/22/2007 |
| 20070014393 | Method and arrangement for estimation of line properties The length and attenuation of a signal line between a transmitter and a customer premises equipment is to be estimated. A frequency dependent line input impedance (Zin(f)) as seen from the transmitter, is measured and an absolute impedance value (œ Zin<... | 01/18/2007 |
| 20060210022 | Apparatus and method for processing acquired signals for arbitrary impedance loads A method and apparatus adapted to calibrate a test probe and oscilloscope system such that digital samples acquired by the system are processed for representing an arbitrary impedance loading of the device under test. The method and apparatus calibrates the test probe t... | 09/21/2006 |
| 20060182231 | Apparatus and method for processing acquired signals for measuring the impedance of a device under test A method and apparatus adapted to calibrate a test probe and oscilloscope system such that digital samples acquired by the system are processed for representing the impedance of a device under test. The method and apparatus calibrates the test probe to characterize tran... | 08/17/2006 |
| 20060140349 | Apparatus and method for processing acquired signals for arbitrary impedance loads A method and apparatus adapted to calibrate a test probe and oscilloscope system such that digital samples acquired by the system are processed for representing an arbitrary impedance loading of the device under test. The method and apparatus calibrates the test probe t... | 06/29/2006 |
| 20050185768 | Calibration method and apparatus A method and apparatus adapted to calibrate a test probe and oscilloscope system such that loading effects of the probe are substantially removed from the measurement. ... | 08/25/2005 |
| 20050185769 | Calibration method and apparatus A method and apparatus adapted to calibrate a test probe and oscilloscope system such that loading effects of the probe are substantially removed from the measurement. ... | 08/25/2005 |
