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Che-Ming
Che-Ming Hsu, Chung Li TW
| Patent application number | Description | Published |
|---|---|---|
| 20120032749 | DIFFERENTIAL SIGNAL LINE STRUCTURE - A differential signal line structure is disposed on a substrate including a signal layer, a filter layer and a grounding layer. The signal layer, the filter layer and the grounding layer are arranged from up to down and in parallel manner. The differential signal line structure accordingly includes a differential signal line group, a first wire and a first grounding circuit; the differential signal line group is disposed in the signal layer; and the first wire is disposed in the filter layer and is arranged in a corresponding position right underneath the differential signal line group. The first grounding circuit is disposed in the grounding layer and is electrically connected to an end point of the first wire through a first via. | 02-09-2012 |
Che-Ming Lin, Taipei TW
Che-Ming Wang, Hsinchu TW
| Patent application number | Description | Published |
|---|---|---|
| 20110283330 | Optical Low-Noise Block Downconverter, Multiple Dwelling Unit, and Related Satellite Television System - A low-noise block downconverter includes a first down-converting circuit for down-converting and filtering a first polarization signal for outputting a first intermediate-frequency signal, a second down-converting circuit for down-converting and filtering a second polarization signal for outputting a second intermediate-frequency signal, wherein a frequency band of the first intermediate-frequency signal is the same as that of the second intermediate-frequency signal, an oscillator for generating an oscillating signal, outputted to the first down-converting circuit and the second down-converting circuit, a first optical transmitter coupled to the first down-converting circuit for converting the first intermediate-frequency signal into a first optical signal, and a second optical transmitter coupled to the second down-converting circuit for converting the second intermediate-frequency signal into a second optical signal. | 11-17-2011 |
Che-Ming Wu, Dongshi Town TW
| Patent application number | Description | Published |
|---|---|---|
| 20090160532 | Charge pump circuit - A charge-pump circuit without reverse current is disclosed. The charge-pump circuit includes: several diode equivalent networks connecting in series, between any two of adjacent diode equivalent networks having a node with a corresponding voltage-boost level, wherein the low voltage end in the diode equivalent network with lowest voltage-boost level is the input of the charge-pump circuit, and the input receives an input voltage signal; a voltage-boost capacitor network having an end to electronically couple to one of the node and the other end to electronically couple to a pulse signal, wherein the pulse signal has a high-voltage level and a low-voltage level to raise a voltage level at the node with voltage-boost as high-voltage level and low-voltage level switches; and a reverse current cut-off circuit electronically coupled to the diode equivalent networks to enable and disable the diode equivalent networks, wherein the reverse current cut-off circuit has two conductive paths. | 06-25-2009 |
Che-Ming Wu, Dongshih Township TW
| Patent application number | Description | Published |
|---|---|---|
| 20090092951 | SENSING TYPE LEARNING CARD AND LEARNING SYSTEM THEREOF - The invention discloses a sensing type learning card and a learning system including the card and a card reader. The sensing type learning card includes at least one card body and at least one identification label. The card reader includes a platform with a defined card disposing area, at least one sensing unit installed at the platform, at least one display unit installed on the card disposing area, a storage unit for storing at least one learning data, and a processing unit. The card body includes a transparent area. The identification label stores an identification data. If the sensing type learning card is disposed on the card disposing area, the sensing unit senses the identification label to read the identification data, and the processing unit inquires a learning data corresponding to the identification data from the storage unit, and drives the display unit to display the inquired learning data. | 04-09-2009 |