摘要:
Entry of a synchronous speed of a rotor can be facilitated by increasing a starting torque by adjusting a magnetization application time for magnetizing the rotor according to whether or not a starting capacitor is used. The present invention includes: a control unit that outputs a control signal for controlling an application time of a magnetizing current according to whether or not a starting capacitor is used; and a switch that supplies power to an exciting coil according to the control signal outputted from the control unit.
摘要:
A semiconductor chip includes a body part having a first surface and a second surface facing away from the first surface, and an opening passing from the first surface to the second surface of the body part.
摘要:
According to example embodiments, there is provided a method of cleaning a semiconductor device manufacturing apparatus. In the method, a fluorine-containing gas is provided into a chamber to clean a byproduct formed on a surface of a chamber during formation of a layer structure therein. A material is provided into the chamber to chemisorb the material on the surface of the chamber. The material is substantially similar to or the same as a source gas for forming the layer structure. A plasma is generated in the chamber, and the chamber is purged.
摘要:
A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect. In one embodiment, the filtering unit is configured to select at least four pixels of successive pixels according to a position of a pixel to be filtered. The four pixels include the pixel to be filtered. At least one of the four pixels may be in a first block, and three of the four pixels may be in a second block adjacent to the first block. The filtering unit is configured to determine a difference between two of the successive pixels. The filtering unit is configured to apply an averaging operation to the selected at least four pixels.
摘要:
A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect. In the method, a pixel of an image is filtered according to a filtering methodology. The filtering methodology includes selecting at least four pixels of successive pixels according to a position of a pixel to be filtered. The four pixels include the pixel to be filtered. At least one of the four pixels may be in a first block, and three of the four pixels may be in a second block adjacent to the first block. The filtering methodology includes determining a difference between two of the successive pixels and comparing the difference to a threshold.
摘要:
A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect. In an embodiment, the filtering unit is configured to select at least four pixels of successive pixels according to a position of a pixel to be filtered. The selected at least four pixels includes the pixel to be filtered, at least one of the selected at least four pixels is in a first block, and three of the selected at least four pixels are in a second block adjacent to the first block. The filtering unit is configured to apply an averaging operation to the selected at least four pixels, and the averaging operation includes a shift operation.
摘要:
A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect. In an embodiment of the present invention, a pixel of an image is filtered according to a filtering methodology. The filtering methodology includes selecting at least four pixels of successive pixels according to a position of a pixel to be filtered. The selected at least four pixels includes the pixel to be filtered, at least one of the selected at least four pixels is in a first block, and three of the selected at least four pixels are in a second block adjacent to the first block. The filtering methodology includes applying an averaging operation to the selected at least four pixels, and the averaging operation includes a shift operation.
摘要:
A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect. In one embodiment, the apparatus includes a filtering unit configured to filter a pixel of an image. The filtering unit is configured to select at least four pixels of successive pixels according to a position of a pixel to be filtered. The selected at least four pixels include the pixel to be filtered. The filtering unit is configured to perform at least one comparison. The comparison compares a determined value and a threshold. The threshold is based on a quantization information of at least a portion of the image including the pixel to be filtered, the determined value is based on a difference value, and the difference value is based on two of the successive pixels.
摘要:
A method and apparatus to remove a block effect and a ring effect appearing in a compression-coded image is disclosed. The present invention is especially applicable to an image compression-coded at a low bit rate. In particular, the present invention includes a variety of masks for the removal of the block/ring effect. Thus, one mask is select for a pixel to be filtered. Moreover, candidate pixels to be averaged with the pixel to be filtered is selected from the pixels of the selected mask to better maintain the details of the image, and a weight is applied to improve the calculation speed of the averaging operation. More particularly, the masks according to the present invention have longer tabs toward adjacent blocks at boundaries of the given block to remove the block and ring effect. In an embodiment, the filtering unit is configured to select a filtering mask based on a position of a pixel to be filtered. The filtering mask includes the pixel to be filtered and at least one candidate pixel. The filtering unit is configured to perform at least one comparison, and the comparison compares a determined value and a threshold. The determined value is based on the pixel to be filtered and the at least one candidate pixel, and the threshold is based on quantization information of at least a portion of the image including the pixel to be filtered.
摘要:
A call switching system having a plurality of mobile terminals, each having individual identification information for connecting a call, and a method of connecting a call therein are provided. The method includes displaying, by a second mobile terminal, when a call is connected between a first mobile terminal and the second mobile terminal, previously stored identification information, transmitting, by the second mobile terminal, if one of the displayed identification information is selected, the selected identification information to the first mobile terminal, and releasing, by the first mobile terminal, when the selected identification information is received, the connected call and connecting another call using the received identification information. Therefore, in a call switching system, a mobile terminal can connect a call through another mobile terminal.