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Cheng-Kuang
Cheng-Kuang Chang, Dalin Township TW
| Patent application number | Description | Published |
|---|---|---|
| 20110319204 | SWING TRAINING BAT - A swing training bat has a main body, a connecting tube, a handle, an extension spring, a fastening device, a striker and a securing device. The extension spring, the fastening device and the striker are mounted in the connecting tube. The extension spring is extendable and has two ends securely connected with the fastening device and the striker. The striker is capable of bumping the securing device when the swing training bat is swung. Because the extended extension spring generates a covering force capable of pulling back the striker and reducing a big bumping force between the striker and the securing device, to reduce the bumping force can relieve damage to a batter's hands. | 12-29-2011 |
Cheng-Kuang Chen, Taichung City TW
| Patent application number | Description | Published |
|---|---|---|
| 20110050367 | DIELECTRIC RESONATOR FOR NEGATIVE REFRACTIVITY MEDIUM - A dielectric resonator for a negative refractivity medium, which is coupled to a plurality of substrates, comprises at least one crystal unit, at least one first crystal cube and at least one second crystal cube. The crystal units are arrayed on the substrate. On an identical substrate, each crystal unit has a first spacing with respect to one adjacent crystal unit and a second spacing with respect to another adjacent crystal unit. The first spacing is vertical to the second spacing. Each crystal unit has one first crystal cube and one second crystal cube. A third spacing exists between the first and second crystal cubes. The first and second crystal cubes have a permittivity greater than 20. The present invention adopts the negative refractivity medium to achieve lower dielectric loss. Further, the present invention features isotropy and has low fabrication cost and high industrial utility. | 03-03-2011 |
Cheng-Kuang Chen, Taichung City CN
| Patent application number | Description | Published |
|---|---|---|
| 20090160718 | PLANE FOCUS ANTENNA - A plane focus antenna includes a plurality of stacking substrates. Each substrate has one side formed a periodic array plane consisting of a plurality of resonant coils and other side laid a metal wire formed in a periodic structure. The magnetic permeability of the stacking double split-ring resonators is negative and the electric permittivity of the metal wire is negative at the same time that can interact with electromagnetic waves to fabricate a negative refractive index material (NRIM) to form the plane focus antenna. By means of the special refractive effect of the NRIM receiving signals can be converged in a very small area to enhance the receiving signals. The plane antenna also does not generate distortion. | 06-25-2009 |
Cheng-Kuang Hsu, Toufen Town TW
| Patent application number | Description | Published |
|---|---|---|
| 20100014708 | TARGET RANGE-FINDING METHOD AND DEVICE - The present invention provides a target range-finding method and device. The device includes a marking portion on the target, which is set with an area or size and defined by a first and second measurement edge. An image acquisition device includes a lens and operating screen. The operating screen displays the target image captured by the image acquisition device. A measuring mark selection unit selects the position of the first and second measurement edges of the target image from the operating screen of the image acquisition device. A processing unit calculates the range of the target. The target range-finding device presents better range-finding accuracy, ease-of-operation and higher efficiency as well as improved applicability. | 01-21-2010 |
Cheng-Kuang Lee, Taipei City TW
| Patent application number | Description | Published |
|---|---|---|
| 20090115997 | MEASUREMENT SYSTEMS AND METHODS FOR OXYGENATED HEMOGLOBIN SATURATION LEVEL - Measurement system and methods for measuring oxygenated hemoglobin saturation level are provided. Light is transmitted to test blood and a reference mirror. The reference mirror provides a first reflected light beam, and backscattered light from different depths of the test blood generates a second reflected light beam. An interfered light signal is generated by light interference of the first and second reflected light beams. According to the interfered light signal, a first light decay constant for a first light wavelength range and a second light decay constant for a second light wavelength range are obtained according to the interfered light signal. A decay ratio of the first light decay constant to the second light decay constant is obtained. Oxygenated hemoglobin saturation level of the test blood is obtained according to the decay ratio. | 05-07-2009 |
| 20100103430 | METHOD FOR ANALYZING MUCOSA SAMPLES WITH OPTICAL COHERENCE TOMOGRAPHY - A method for analyzing mucosa structure with optical coherence tomography (OCT) is provided, and includes: (a) scanning a mucosa sample with optical coherence tomography; (b) choosing a lateral range from a two- or three-dimensional OCT image and analyzing all the A-scan intensity profiles in the lateral range; (c) calculating three indicators in each A-scan intensity profile, including the standard deviation for a certain depth range below the sample surface, the exponential decay constant of the spatial-frequency spectrum and the epithelium thickness under the condition that the basement membrane is identifiable; and (d) using the three indicators of each A-scan intensity profile within the lateral range to analyze the mucosa structure. | 04-29-2010 |
Cheng-Kuang Lin, Nantou City TW
| Patent application number | Description | Published |
|---|---|---|
| 20100072962 | DC/DC SWITCHED-MODE CONVERTER WITH A PERIOD BIFURCATION CONTROL MECHANISM - A DC-DC switched mode converter includes a voltage conversion circuit, a switch control circuit, a duty cycle detector, a control signal generator, and a control signal selector. The switch control circuit generates a first control signal. The duty cycle detector detects a duty cycle of the first control signal so as to generate a detection signal. The control signal generator generates a second control signal. The control signal selector outputs the first control signal or the second control signal for controlling the voltage conversion circuit according to the detection signal. | 03-25-2010 |
| 20100164462 | DC-DC CONVERTER PROVIDING SOFT-START FUNCTIONS - A DC-DC converter includes a switch circuit, a feedback circuit, an error amplifier, a soft-start circuit, and a signal modulation circuit. The switch circuit receives an input voltage and charges/discharges an inductor based on a switch control signal, thereby providing an output voltage. The feedback circuit provides a corresponding feedback voltage based on the output voltage. The error amplifier generates a comparing voltage based on the feedback voltage and a reference voltage. The soft-start circuit provides a ramp clamping voltage, which is outputted as the comparing voltage when the comparing voltage is larger than the ramp clamping voltage. The signal modulation circuit generates the switch control signal based on the comparing signal and a periodic signal. | 07-01-2010 |
Cheng-Kuang Liu, Taipei City TW
| Patent application number | Description | Published |
|---|---|---|
| 20100322624 | BIDIRECTIONAL TRANSMISSION NETWORK APPARATUS BASED ON TUNABLE RARE-EARTH-DOPED FIBER LASER - The present invention discloses a bidirectional transmission network apparatus based on a tunable rare-earth-doped fiber laser source. It is useful in wavelength-division-multiplexing access networks. The fiber ring laser not only generates downstream data traffic but also serves as the wavelength-selecting injection light source for the Fabry-Pérot lasers (or vertical cavity surface emitting lasers) located at the subscriber site. The fiber laser is constructed based on optical filtering, polarization control and noise suppression techniques. | 12-23-2010 |
Cheng-Kuang Yang, Miaoli City TW
| Patent application number | Description | Published |
|---|---|---|
| 20100018114 | SUPPORT FOR FLOWER STALK - A support for flower stalks includes a base and two tubes connected to the base. The base has two concavities defined in a bottom thereof and two protrusions upwardly extending from a top thereof. The concavities are adapted to be connected to a pot for assembling steadily. One end of each tube is mounted with a corresponding one of the protrusions. Each tube has a partial opening laterally defined therein for inserting the flower stalk into the tube. Each tune is divided into an upper portion and a lower portion by the partial opening. The upper portion is longer than the lower portion for supporting the flower stalk to prevent the flower from being bended or broken and the lower portion is mounted with the corresponding one of protrusions for securing the tube. | 01-28-2010 |