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James Yu
James Yu, San Jose, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090058436 | SYSTEM AND METHOD FOR MEASURING A CABLE RESISTANCE IN A POWER OVER ETHERNET APPLICATION - A system and method for measuring a cable resistance in a power over Ethernet (PoE) application. A short circuit module in a powered device is designed to produce a short circuit effect upon receipt of a cable resistance detection voltage. The cable resistance detection voltage can be designed to be greater than a voltage for detection or classification and less than a voltage for powering of the powered device. The measurement of the current at a time when a short circuit effect is produced at the powered device enables a calculation of the actual resistance of the cable on a given PoE port. | 03-05-2009 |
| 20100182024 | System and Method for Measuring a Cable Resistance in a Power Over Ethernet Application - A system and method for measuring a cable resistance in a power over Ethernet (PoE) application. A short circuit module in a powered device is designed to produce a short circuit effect upon receipt of a cable resistance detection voltage. The cable resistance detection voltage can be designed to be greater than a voltage for detection or classification and less than a voltage for powering of the powered device. The measurement of the current at a time when a short circuit effect is produced at the powered device enables a calculation of the actual resistance of the cable on a given PoE port. | 07-22-2010 |
| 20110055598 | AC Disconnect of Power Over Ethernet Devices - Embodiments of power sourcing equipment (PSE) utilizing AC disconnect are provided herein. In one embodiment, a PSE is provided that includes a DC supply configured to provide a DC voltage over a data communications medium, a controller configured to provide an AC disconnect signal over the data communications medium, and a parallel inductor-capacitor (LC) circuit coupled between the DC supply and the data communications medium. The parallel LC circuit is configured to isolate the DC supply from the AC disconnect signal. In another embodiment, a PSE is provided that includes a DC supply configured to provide a DC voltage at an output, an inductor coupled between the output of the DC supply and a data communications medium, and a capacitor coupled between the data communications medium and ground. The inductor and capacitor form a series LC circuit configured to generate an AC disconnect signal. | 03-03-2011 |
James Yu, Glenview, IL US
| Patent application number | Description | Published |
|---|---|---|
| 20110040651 | SYSTEMS AND METHODS FOR MANAGING ORDERS MADE VIA A COMPUTER NETWORK - A system and method for allowing a user to schedule pickup of an ordered item provides a user interface having user interface elements for allowing a user to specify a frequency with which an order is it to be picked up, for informing a user as to availability of the item for pickup, and/or for allowing a user to request that an item be held in reserve for pickup within a given period of time, such as 24 hours. Frequency options provided to the user for selection when scheduling an order for pickup may include a one-time frequency, a daily frequency, a weekly frequency, a monthly frequency, and user specified dates. The information as to availability of the item for pickup is determined considering a time of order and real-time stocking information for the item. | 02-17-2011 |
James Yu, San Francisco, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090222678 | ACTIVE POWERED DEVICE FOR THE APPLICATION OF POWER OVER ETHERNET - An active powered device (PD) for the application of power over Ethernet (PoE). In a fixed power budget environment, it is important for the power sourcing equipment (PSE) to accurately determine a power budget for the various powered ports. An active PD can be designed to gather additional information (e.g., current and input voltage) during PD operation and to forward the additional information to the PSE. The PSE can then use the additional information to adjust operational parameters such as a power budget. | 09-03-2009 |
| 20100277293 | Capacitor Coupled Ethernet - A system and method for enabling power applications over a single conductor pair. In one embodiment, data transformers are coupled to a single conductor pair using one or more direct current (DC) blocking elements that preserve an alternating current path. Power is injected onto the single conductor pair after the DC blocking elements and power is extracted from the single conductor pair before the DC blocking elements. Saturation of the data transformers by the injection of power onto the single pair is thereby prevented. | 11-04-2010 |
James Yu, Dallas, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20100242572 | WAVELENGTH MODULATION SPECTROSCOPY FOR SIMULTANEOUS MEASUREMENT OF TWO OR MORE GAS INGREDIENTS - Methods and systems to measure simultaneously concentrations or concentration ratio(s) of two or more gas ingredients in a sample area comprising: a wavelength modulated light source; an acoustic detector or a photodetector; and means to analyze the signal from the acoustic detector or the photodetector and calculate the concentrations or concentration ratio(s). The light from the light source is transmitted through the sample area. Part of the light will be absorbed in the sample area by the gas ingredients and generates photoacoustic signal. The acoustic detector is used to sample the photoacoustic signal. Alternatively, a photodetector is used to sample the light intensity after the light is transmitted through the sample area. | 09-30-2010 |
James Yu, New York, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20090307081 | SYSTEMS AND METHODS FOR CUSTOMIZING AN ADVERTISEMENT - The disclosed technology provides systems, architectures, and methods for providing to a Web page electronic advertisements related to the content of the Web page. In one aspect, the disclosed technology manages and serves electronic advertisements for affiliated Web page publishers and advertisers. A computer-implemented method in accordance with the disclosed technology receives a request for an electronic advertisement for a Web page, wherein the Web page is associated with a Web page publisher, accesses one or more keywords appearing in the Web page, identifies one or more relevant electronic advertisements related to the keyword(s), wherein the relevant electronic advertisement(s) are associated with an advertiser affiliated with the Web page publisher, and communicates one or more the relevant electronic advertisements to the Web page for display. The disclosed technology also includes a computer executing software, wherein the executed software causes the computer to perform the steps above. | 12-10-2009 |