| MACROBLOCK, INC. Patent applications |
| Patent application number | Title | Published |
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| 20120099193 | LIGHT EMITTING DIODE PACKAGING STRUCTURE AND LIGHT EMITTING DIODE STEREOSCOPIC DISPLAY DEVICE - A Light Emitting Diode (LED) packaging structure comprises an LED die, a package body, and an optical element. The package body wraps the LED die, and the optical element is disposed on the package body. A light beam emitted by the LED die passes through the optical element and is split into a plurality of sub-light beams, and each of sub-light beams is individually projected onto an image plane corresponding to the optical element. Therefore, the LED packaging structure is applied to an LED stereoscopic display device, so that left eye and right eye of a viewer may respectively receive light beams emitted by different LED dies, so as to view a stereoscopic image, thereby solving a problem of a conventional stereoscopic display device that the stereoscopic image may be viewed in only a single viewable area. | 04-26-2012 |
| 20120033459 | CIRCUIT REGULATOR AND SYNCHRONOUS TIMING PULSE GENERATION CIRCUIT THEREOF - A circuit regulator is used to generate a pulse-width-modulation signal, so as to control a power to be selectively input or not input to a primary side of a switching power supply. The circuit regulator includes a synchronous timing pulse generation circuit, outputs a starting pulse after performing signal process of time delay, timing pulse regulation, and synchronization control on a pulse-width-modulation signal and a discharging time signal of a secondary side, and accordingly effectively controls a pulse starting time of the pulse-width-modulation signal. Therefore, the synchronous timing pulse generation circuit can be applied to the circuit regulator, so as to further effectively prevent an inductor current of the switching power supply from entering a Continuous Conduction Mode (CCM). | 02-09-2012 |
| 20120017108 | SERIAL CONTROLLER AND BI-DIRECTIONAL SERIAL CONTROLLER - A serial controller is adapted to receive an external clock and an input data, and output an inverted clock and an output data. The serial controller includes an inverter, a serial position detector, a synchronous clock generator, a serial register, and a half-cycle delay unit. Thereby, through the serial controller, the problem that the data signal and the driving clock are not synchronous when the clock series are inverted is avoided. Besides, a bi-directional serial controller further includes an identification unit and a data directing unit, and the serial controller is enabled to return the current status to a central control unit to serve as the reference for error detection. | 01-19-2012 |
| 20110285325 | LED DRIVING DEVICE AND DRIVING SYSTEM THEREOF - A light emitting diode (LED) driving device outputs a driving signal according to a select signal, an update data, and an update command. The driving device includes a buffer circuit, a display data storage, and a signal generating circuit. The buffer circuit includes register series and a bypass register. The buffer circuit selectively stores the update data in the register series and the bypass register according to the update command. The display data storage stores multiple display data. The display data storage updates the display data by using the update data stored in the register series according to the update command. The signal generating circuit outputs the driving signal according to the display data. When the update data is stored in the bypass register, the clock of the update data passing through the driver is reduced. | 11-24-2011 |
| 20110242859 | ISOLATED PRIMARY CIRCUIT REGULATOR - An isolated primary circuit regulator is applied to a primary side of a transformer of a power supply. The isolated primary circuit regulator outputs a switching signal, and switches the transformer by using the switching signal, thereby stabilizing an output current. The isolated primary circuit regulator includes a discharge time detector, an oscillator, a pulse width modulator and a control circuit. The discharge time detector is used for detecting a discharge time of a switching current generated at a secondary side of the transformer. The oscillator is used for generating an oscillation signal. The control circuit is used for outputting an adjustment signal. The pulse width modulator outputs a switching signal according to the oscillation signal output by the oscillator and the adjustment signal output by the control circuit. The switching signal has a duty cycle and a frequency corresponding to the oscillation signal and the adjustment signal. | 10-06-2011 |
| 20110140758 | ANALOG MULTIPLIER - An analog multiplier includes a bias circuit, a level shifter, a multiplying circuit, and a current mirror. The analog multiplying circuit is used for inputting a first voltage and a second voltage, and outputting a product current. The product current is proportional to a product of the first voltage and the second voltage. The analog multiplier is implemented by a few devices, thereby having a simple architecture and being capable of being driven by a small amount of power. | 06-16-2011 |
| 20110074799 | SCAN-TYPE DISPLAY DEVICE CONTROL CIRCUIT - A scan-type display device control circuit is suitable for receiving successive frame data and driving a light-emitting diode (LED) display device accordingly. The scan-type display device control circuit includes a ping-pong buffer, a data storage controller, a line scan controller, a display buffer, and a scrambled pulse width modulation (PMW) signal generating device. The scan-type display device control circuit can utilize frame data circularly and repeatedly, so as to prevent a great mass of data from being transmitted repeatedly. Therefore, a band width for inputting data can be reduced significantly. Furthermore, the scrambled PMW signal generating device can scramble a PMW signal with a long period into a plurality of scrambled PMW signals with a short period. Therefore, the refresh rate can be efficiently enhanced without changing the band width for inputting data. | 03-31-2011 |
| 20110012522 | FIXED FREQUENCY DIMMING METHOD AND FIXED FREQUENCY DIMMING CIRCUIT FOR LIGHT EMITTING MODULE - A fixed frequency dimming method and fixed frequency dimming circuit for a light emitting module can control light emitting brightness of the light emitting module through a hysteresis control circuit. A voltage difference between an upper limit voltage and a lower limit voltage of a hysteresis width of the hysteresis control circuit is maintained at a fixed value, and a driving current flowing through the light emitting module is changed by changing the upper limit voltage or the lower limit voltage. | 01-20-2011 |
| 20100165669 | SINGLE-STAGE ISOLATED HIGH POWER FACTOR AC/DC CONVERTER WITH LEAKAGE INDUCTOR ENERGY RECOVERY FUNCTION - A single-stage isolated high power factor AC/DC converter with a leakage inductor energy recovery function includes a buck-boost circuit, for step-down or step-down a power supply; a transformer, electrically connected to the buck-boost circuit, for transforming the stepped-down or stepped-up power supply; a switch, electrically connected to the buck-boost circuit; an input capacitor, electrically connected to the buck-boost circuit; and an output circuit, for outputting the power supply transformed by the transformer. When the switch is cut off, the buck-boost circuit provides an energy recovery path to return energy stored in a leakage inductor of the transformer to the input capacitor. The energy stored in the leakage inductor of the transformer in a flyback converter or a forward converter is returned to the input capacitor through the energy recovery path. The problem caused by the leakage inductor of the transformer is solved without using any additional element. | 07-01-2010 |
| 20100060190 | LIGHT-EMITTING DIODE DRIVING CIRCUIT - A light-emitting diode driving circuit includes an AC/DC converting circuit for converting an AC power source into a DC power source; a switching element having an input contact connected to the AC/DC converting circuit; a control unit for outputting a control signal to the switching element at a set frequency to turn on or turn off the switching element, wherein a first resistor is disposed between a power contact thereof and the input contact of the switching element; a second resistor for enabling the control unit to detect a half-cycle voltage of the DC power source; a capacitor having a first end connected to the power contact, and a second end connected to a ground contact of the control unit; and an inductor having a first end connected to the ground contact and the second end of the capacitor, and a second end connected to a light-emitting diode. | 03-11-2010 |
| 20090315507 | Photovoltaic Circuit - A photovoltaic circuit configured to supply an output current to a tank module is provided. The photovoltaic circuit comprises a photovoltaic transformation module, a first process module, a plurality of second process modules, and a first control module. The process modules are connected to each other in parallel. The process modules in the parallel connection are connected to the photovoltaic transformation module and the tank module in series. The first control module is connected to the first process module and generates a control signal to the process modules in response to a divided current, a modulation current, and a last output current generated by the first process module. Thereby, the process modules interlacedly output the corresponding modulation current as the output current supplied to the energy reserve module. | 12-24-2009 |
| 20090267680 | POWER DRIVING DEVICE FOR ELECTRONIC DEVICE - The present invention discloses a power driving device for an electronic device, comprising: a data input terminal capable of receiving a sequential data comprising at least a first power control sequential data and at least a second power control sequential data; an operation module capable of performing operation on the first power control sequential data and the second power control sequential data to generate a control signal; and a power control module coupled to the operation module to generate at least an output power according to the control signal. Therefore, the control signal can be used to control various power states of an electronic device. | 10-29-2009 |
| 20090213629 | POWERING CIRCUIT OF AC-DC CONVERTER - A powering circuit of an AC-DC converter, for converting a high AC input voltage into a low DC output voltage to provide a load voltage in a stable DC bias range, includes a rectifier, a sensing circuit, a control switching circuit, and a voltage regulating capacitor. The rectifier has a primary side coupled to an AC power supply and a secondary side for outputting a DC power supply. The sensing circuit compares the AC input voltage with a preset reference voltage, and turns on a second switch in the control switching circuit when the AC input voltage is lower than the reference voltage, thereby providing a low DC output voltage. The control switching circuit sustains the DC output voltage in a stable DC bias range. Therefore, in addition to reducing the power consumption of the second switch, this circuit structure is simple and can achieve the purpose of circuit integration. | 08-27-2009 |
| 20080315920 | SIGNAL ENCODER AND SIGNAL DECODER - A signal encoder and a signal decoder involves the signal encoder for receiving a data signal and a clock signal, including a first code output terminal and a second code output terminal. When the data signal is logic one, the signal encoder outputs a modulated signal through the first code output terminal, and outputs a fixed level signal through the second code output terminal. When the data signal is logic zero, the signal encoder outputs the fixed level signal through the first code output terminal, and outputs the modulated signal through the second code output terminal. The signal decoder converts the modulated signal and the fixed level signal output from the signal encoder into the data signal and the clock signal. | 12-25-2008 |
| 20080304484 | METHOD FOR OPERATING MULTIPOINT CONTROL SYSTEM - The present invention provides method for operating a multipoint control system. It utilizes start packets pass through every one of controlled units which could be modified and transmitted to the next stage to achieve addressing for all of the system. The method comprises providing the multipoint control system, wherein the multipoint control system includes a plurality of controlled units serially connected, each of the controlled units has a execution unit and an interpretive unit, each of the interpretive unit has a data processing unit and a memory unit; transmitting an information stream by a controller, wherein the information stream includes a first start packet and a plurality of first data packets, the first start packet includes a first leading message, a first address, and a first length message; modifying the first address by each of the data processing units included in each of the interpretive units according to the first leading message and transmitting to the next stage; retrieving the first data packet corresponding to the first address by each of the interpretive units according to the first address, the first length message; and enabling each of the execution units included in each of the interpretive units according to content of each of the first data packets. | 12-11-2008 |
