1. A hydraulic system of a work machine with a hydraulically controlled implement, the hydraulic system comprising:
an operating oil flow passage configured to flow operating oil supplied from a main pump;
a boost flow oil passage configured to supply operating oil from a sub-pump to the operating oil flow passage, the sub-pump being different from the main pump and being connected to the operating oil flow passage at a confluence;
a connection unit which is provided downstream of the confluence on the operating oil flow passage and is configured to connect to either one of a high-flow actuator for the implement requiring an amount increase of the operating oil and a normal actuator for the implement not requiring an amount increase of the operating oil;
a high-flow valve which is provided on the boost flow oil passage and configured to adjust the amount increase;
a controller configured to control the high-flow valve;
an annunciation device connected to the controller;
a high-flow switch which is connected to the controller and configured to effect or cancel a command of the amount increase on the high-flow valve; and
an annunciation control unit which is provided in the controller and configured to make annunciation through the annunciation device when the connection unit is connected to the high-flow actuator and the amount increase is effected by the high-flow valve in accordance with an operation of the high-flow switch.
2. The hydraulic system according to claim 1,
further comprising a discrimination device configured to output a discriminative signal for discriminating whether the actuator connected to the connection unit is the high-flow actuator or the normal actuator,
the discrimination device outputting the discriminative signal to the controller when the actuator is connected to the connection unit,
the controller making annunciation through the annunciation device when the discriminative signal indicates that the normal actuator is connected.
3. The hydraulic system according to claim 2, wherein
the discrimination device comprises:
a discrimination first terminal which is provided in the connection unit and is configured to output a voltage for the discriminative signal;
a discrimination second terminal which is provided on the connection unit and is configured to output the discriminative signal to the controller;
a normal first terminal which is provided in the normal actuator and is to be connected to the discrimination first terminal of the connection unit;
a normal second terminal which is provided in the normal actuator, is open-circuited to the normal first terminal, and is configured to output the discriminative signal corresponding to the normal actuator to the discriminative terminal;
a high-flow first terminal which is provided in the high-flow actuator and is to be connected to the discrimination first terminal of the connection unit; and
a high-flow second terminal which is provided on the high-flow actuator, is short-circuited to the high-flow first terminal, and is configured to output the discriminative signal corresponding to the high-flow actuator to the discriminative terminal.
4. The hydraulic system according to claim 2, wherein
the connection unit comprises a high-flow connection part for connecting the high-flow actuator, and a normal connection part for connecting the normal actuator,
the operating oil flow passage bifurcates on an downstream side at a branching point into a first connection part and a second connection part,
the first connection part serves as a component of the high-flow connection part, and the second connection part serves as a component of the normal connection part, and
the confluence is provided on the first connection part and a check valve is disposed between the confluence and the branching point.
5. A hydraulic system of a work machine with a hydraulically controlled implement, the hydraulic system comprising:
an operating oil flow passage configured to flow operating oil supplied from a main pump;
a boost flow oil passage configured to supply operating oil from a sub-pump to the operating oil flow passage, the sub-pump being different from the main pump and being connected to the operating oil flow passage at a confluence;
a connection unit which is provided downstream of the confluence on the operating oil flow passage and is configured to connect to either one of a high-flow actuator for the implement requiring an amount increase of the operating oil and a normal actuator for the implement not requiring an amount increase of the operating oil, comprising:
a high-flow connection part for connecting the high-flow actuator, having a first connection part branched from the operating oil flow passage on an downstream side at a branching point, and
a normal connection part for connecting the normal actuator, having a second connection part branched from the operating oil flow passage at the branching point;
the confluence being provided on the first connection part and a check valve being disposed between the confluence and the branching point.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An image processing apparatus comprising:
a compression coding unit to perform compression coding of image data according to JPEG2000 algorithm, wherein the compression coding includes DC-level shifting processing, color transform processing, 2-dimensional discrete wavelet transform processing, quantization processing, coefficient bit modeling processing, arithmetic entropy coding processing, and data ordering control processing; and
a coding style selection unit to selectively activate coding functions of the compression coding unit to cause the active coding functions of the compression coding unit to be suited to characteristics of the image data, wherein a coding style mode, specifying the selective activation of the coding functions of the compression coding unit by the coding style selection unit, is dynamically switched per a portion of the image data between different coding style modes;
an image property discriminating unit to distinguish the characteristics of the image data and outputting a discriminating signal indicating the characteristics of the image data, wherein at least one of the compression coding unit, the coding style selection unit, and the image property discriminating unit are implemented with a processor;
wherein the DC-level shifting processing, the color transform processing, the 2-dimensional discrete wavelet transform processing, and the quantization processing are subjected to the selective activation of the coding functions by the coding style selection unit in response to the discriminating signal, and wherein the coding style selection unit activates the processing operations of DC-level shifting, color transform, 2-dimensional discrete wavelet transform and quantization in the compression coding unit when the discriminating signal indicates a natural image, the coding style selection unit deactivating the processing operations of DC-level shifting, color transforming, 2-dimensional discrete wavelet transform and quantization in the compression coding unit when the discriminating signal indicates a palletized image or a bi-level image, the coding style selection unit activating only the quantization processing optionally when the discriminating signal indicates a computer graphics image, and the coding style selection unit activating the processing operations of DC-level shifting, 2-dimensional discrete wavelet transform and quantization in the compression coding unit when the discriminating signal indicates a monochrome image.
2. The image processing apparatus of claim 1 wherein the coding style selection unit is operable to make reference to a coding style table which specifies how the coding functions of the compression coding unit are selected by the coding style selection unit in response to respective characteristics of the image data.
3. The image processing apparatus of claim 1 wherein the discriminating signal indicates the characteristics of the image data, and any of a natural image, a computer graphics image, a palletized image, a monochrome image and a bi-level image is set to the discriminating signal as the object of compression coding.
4. The image processing apparatus of claim 1 wherein the portion of the image data is a tile that is defined when the image data is divided into a plurality of tiles, each of which is subjected to the compression coding.
5. The image processing apparatus of claim 1 wherein the portion of the image data is a rasterline that is defined when the image data is divided into a plurality of rasterlines, each of which is subjected to the compression coding.
6. The image processing apparatus of claim 4 wherein the compression coding unit is operable to describe a coding style mode information, indicating a selected coding style mode for every tile, in a main header of a codestream created as a result of the compression coding.
7. The image processing apparatus of claim 5 wherein the compression coding unit is operable to describe a coding style mode information, indicating a selected coding style mode for every rasterline, in a main header of a codestream created as a result of the compression coding.
8. The image processing apparatus of claim 4 wherein the compression coding unit is operable to describe a coding style mode information, indicating a selected coding style mode for every tile, in a corresponding tile-part header of a codestream created as a result of the compression coding.
9. The image processing apparatus of claim 5 wherein the compression coding unit is operable to describe a coding style mode information, indicating a selected coding style mode for every rasterline, in a corresponding rasterline-part header of a codestream created as a result of the compression coding.
10. An image processing apparatus comprising:
a compression coding unit to perform compression coding of image data according to JPEG2000 algorithm, wherein the compression coding unit performs the compression coding of the image data, including DC-level shifting processing, color transform processing, 2-dimensional discrete wavelet transform processing, quantization processing, coefficient bit modeling processing, arithmetic entropy coding processing, and data ordering control processing;
a coding style selection unit to selectively activate coding functions of the compression coding unit, wherein a coding style mode, specifying the selective activation of the coding functions of the compression coding unit by the coding style selection unit, is dynamically switched per a portion of the image data between different coding style modes,
a coding efficiency unit to cause the compression coding unit to perform a plurality of coding style modes of compression coding processing of the image data in which the selective activation of the coding functions by the coding style selection unit differs each other, and to compute a coding efficiency of each of a set of code streams obtained through the different coding style processings respectively;
a selection unit to select one of the respective code streams with a highest coding efficiency among the computed coding efficiencies as being an output code stream actually outputted from the compression coding unit; and
an image property discriminating unit to distinguish the characteristics of the image data and outputting a discriminating signal indicating the characteristics of the image data, wherein at least one of the compression coding unit, the coding style selection unit, and the image property discriminating unit are implemented with a processor;
wherein the DC-level shifting processing, the color transform processing, the 2-dimensional discrete wavelet transform processing, and the quantization processing, included in the compression coding, are subjected to the selective activation of the coding functions of the compression coding unit by the coding style selection unit in response to the discriminating signal.
11. An article of manufacture comprising one or more computer readable medium having instructions stored thereon which, when executed by a computer, cause the computer to execute an image processing method, the image processing method comprising:
performing compression coding of image data according to JPEG2000 algorithm, wherein the compression coding includes DC-level shifting processing, color transform processing, 2-dimensional discrete wavelet transform processing, quantization processing, a coefficient bit modeling processing, arithmetic entropy coding processing, and data ordering control processing;
selectively activating coding functions of the compression coding in response to a discriminating signal, so that the active coding functions of the compression coding are suited to characteristics of the image data,
dynamically switching per a portion of the image data between different coding style modes, which specify the selective activation of the coding functions;
distinguishing the characteristics of the image data; and
outputting a discriminating signal indicating the characteristics of the image data;
wherein the DC-level shifting processing, the color transform processing, the 2-dimensional discrete wavelet transform processing, and the quantization processing are subjected to the selective activation of the coding functions in response to the discriminating signal, wherein said selectively activating comprises:
activating the processing operations of DC-level shifting, color transform, 2-dimensional discrete wavelet transform and quantization in the compression coding unit when the discriminating signal indicates a natural image;
deactivating the processing operations of DC-level shifting, color transforming, 2-dimensional discrete wavelet transform and quantization in the compression coding unit when the discriminating signal indicates a palletized image or a bi-level image;
activating only the quantization processing optionally when the discriminating signal indicates a computer graphics image; and
activating the processing operations of DC-level shifting, 2-dimensional discrete wavelet transform and quantization in the compression coding unit when the discriminating signal indicates a monochrome image.
12. An article of manufacture comprising one or more Computer readable medium having instructions stored thereon which, when executed by a computer, cause the computer to execute an image processing method, the image processing method comprising:
performing compression coding of image data according to JPEG2000 algorithm, wherein the compression coding includes DC-level shifting processing, color transform processing, 2-dimensional discrete wavelet transform processing, quantization processing, coefficient bit modeling processing, arithmetic entropy coding processing, and data ordering control processing;
selectively activating coding functions of the compression coding
performing a plurality of coding style modes of compression coding processing of the image data in which the selective activation of the coding functions differs each other;
computing a coding efficiency of each of a set of code streams obtained through the different coding style processings respectively;
selecting one of the respective code streams with a highest coding efficiency among the computed coding efficiencies as being an output code stream created by the compression coding of the image data;
distinguishing the characteristics of the image data; and
outputting a discriminating signal indicating the characteristics of the image data;
wherein the DC-level shifting processing, the color transform processing, the 2-dimensional discrete wavelet transform processing, and the quantization processing are subjected to the selective activation of the coding functions in response to the discriminating signal.
13. An image processing method comprising:
one or more processors implementing
performing compression coding of image data according to JPEG2000 algorithm, wherein the compression coding includes DC-level shifting processing, color transform processing, 2-dimensional discrete wavelet transform processing, quantization processing, coefficient bit modeling processing, arithmetic entropy coding processing, and data ordering control processing;
selectively activating coding functions of the compression coding in response to a discriminating signal to cause the active coding functions of the compression coding to be suited to characteristics of the image data; dynamically switching per a portion of the image data between different coding style modes, which specify the selective activation of the coding functions;
distinguishing the characteristics of the image data; and
outputting a discriminating signal indicating the characteristics of the image data;
wherein the DC-level shifting processing, the color transform processing, the 2-dimensional discrete wavelet transform processing, and the quantization processing are subjected to the selective activation of the coding functions by the coding style selection unit in response to the discriminating signal, and wherein the selectively activating coding functions comprises:
activating the processing operations of DC-level shifting, color transform, 2-dimensional discrete wavelet transform and quantization in the compression coding unit when the discriminating signal indicates a natural image;
deactivating the processing operations of DC-level shifting, color transforming, 2-dimensional discrete wavelet transform and quantization in the compression coding unit when the discriminating signal indicates a palletized image or a bi-level image;
activating only the quantization processing optionally when the discriminating signal indicates a computer graphics image; and
activating the processing operations of DC-level shifting, 2-dimensional discrete wavelet transform and quantization in the compression coding unit when the discriminating signal indicates a monochrome image.