1. A communication apparatus that retrieves contents and provides thus retrieved contents, comprising:
reception means for receiving a retrieval keyword that requests contents from an external device;
retrieval means for retrieving contents from a database based on the retrieval keyword received by the reception means;
page information generation means for generating page information including list information of contents retrieved by the retrieval means, and appending information that displays whether or not the page information is provided with a consecutive reproduction function of making the external device consecutively reproduce part of contents included in the list information respectively to the page information; and
transmission means for transmitting the page information generated by the page information generation means to the external device.
2. The communication apparatus according to claim 1, wherein,
during a period of time when respective items in the list information are selected in turn, and part of contents related to the selected items is transmitted to the external device for reproduction respectively, the page information generation means appends information displaying that the part of contents is being consecutively reproduced respectively to the page information.
3. The communication apparatus according to claim 1, wherein,
when transmitting all items in the list information to the external device for reproduction is completed, the page information generation means appends information displaying that the consecutive reproduction is completed to the page information.
4. The communication apparatus according to claim 1, wherein,
in case the page information displaying the list information of contents including those retrieved by the retrieval means is generated, the page information generation means further appends information that displays whether or not the contents are reproduced at the time of carrying out the consecutive reproduction function with respect to items of respective contents in the list information.
5. The communication apparatus according to claim 1, wherein,
in case the page information displaying a table of the list information is generated as the retrieval result of the retrieval means, the page information generation means appends information that displays whether or not the list information in the table is provided with the consecutive reproduction function respectively.
6. The communication apparatus according to claim 1, wherein
the page information generation means appends identification information that indicates whether or not the page information is provided with the consecutive reproduction function to the page information, and makes the external device display a notification indication corresponding to the identification information.
7. The communication apparatus according to claim 1, wherein the contents are tunes, and, at the time of carrying out the consecutive reproduction function, audio data corresponding to part of the contents is consecutively transmitted to the external device.
8. A communication method for retrieving contents and providing thus retrieved contents, comprising:
receiving a retrieval keyword that requests contents from an external device;
retrieving contents from a database based on the received retrieval keyword;
generating page information including list information of retrieved contents, and appending information that displays whether or not the page information is provided with a consecutive reproduction function of making the external device consecutively reproduce part of contents included in the list information respectively to the page information; and
transmitting the generated page information to the external device.
9. A communication program that makes a computer execute the processing of retrieving contents and providing thus retrieved contents, the computer executing the processing comprising:
receiving a retrieval keyword that requests contents from an external device;
retrieving contents from a database based on the received retrieval keyword;
generating page information including list information of retrieved contents, and appending information that displays whether or not the page information is provided with a consecutive reproduction function of making the external device consecutively reproduce part of contents included in the list information respectively to the page information; and
transmitting the generated page information to the external device.
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. A filtering device for fluids, comprising a filter housing (1) in which at least one filtering element (9), which defines a longitudinal axis (11), can be accommodated in the form of a filter cartridge, which on at least one end has an end cap (17) forming an enclosure for the pertinent end edge of the filter material (23, 35) and which can be fixed on an element receiver (13) which interacts with the bottom part (5) of the filter housing (1) in order to fix the position of the filter element (9) in its functional position and which forms a fluid path for the cleaned fluid which emerges from the filter cavity (19) of the filter element (9), characterized in that the element receiver (13) contains a valve arrangement (55) which blocks the fluid path (35) and that there is a control device (79, 83) which unblocks the valve arrangement (55) in the operating position on the end cap (17) of the filter element (9), which cap is to be fixed on the element receiver (13).
2. The filter device according to claim 1, characterized in that the element receiver (13) for forming the fluid path (53) for the cleaned fluid has a seating connection (51) which projects from the housing bottom part (5) axially in the direction of the filter element (9) which is in the operating position, and which connection contains the valve arrangement (55).
3. The filter device according to claim 2, characterized in that the end cap (17) has a threaded connection (73) which in the filtration process forms the fluid outlet from the filter cavity (19) of the filter element (9), which cavity forms the clean side, and can be screwed to the seating connection (51), and that the control device for the valve arrangement (55) on the threaded connection (73) is a control body (79, 83) which in the course of being screwed to the seating connection (51) acts on the valve arrangement (55) to unblock it.
4. The filter device according to claim 3, characterized in that the valve arrangement (55) has a valve body (57, 58) which is axially movable on the inside wall of the seating connection (51) and which is preloaded by a spring arrangement (61, 63) in the direction of the end cap (17) into the blocking position.
5. The filter device according to claim 4, characterized in that the control body on the threaded connection (73) forms an axial projection (79) which acts on the valve body (57, 58) during the screw coupling process and moves it out of the blocking position against the force of the spring arrangement (61, 63).
6. The filter device according to claim 5, characterized in that the valve arrangement (55) has a ring body (59) which projects on the inside wall on the seating connection (51) and which forms the valve seat (60) for the plate-shaped valve body (57).
7. The filter device according to claim 6, characterized in that the threaded connection (73) is provided with an external thread (75) and can be screwed to an internal thread (74) which is located in the seating connection (51).
8. The filter device according to claim 5, characterized in that the valve body of the valve arrangement (55) is formed by a valve spool (58) with axial fluid passages (64) and that the seating connection (51) has an end plate (70) which closes the fluid passages (64) of the spool (58) in the blocking position.
9. The filter device according to claim 8, characterized in that the threaded connection (73) of the end cap (17) is provided with an internal thread (74) and can be screwed to an external thread (75) which is located on the seating connection (51).
10. The filter device according to claim 4, characterized in that the valve arrangement (55) has a spring cup (65) which has fluid passages (69) and which is attached to the end region facing the housing bottom part (5) in the seating connection (51) for supporting the compression spring unit (61, 63) which is supported on the other hand on the valve body (57, 58).
11. The filter device according to claim 10, characterized in that the spring cup (65) has a central hollow pin (67) which projects in the direction of the sealing body (57) and which forms the guide for a helical spring arrangement (61, 63) which surrounds it.
12. The filter device according to claim 10, characterized in that the helical spring arrangement can be formed by a spring assembly of two helical springs (61 and 63) which are located coaxially to one another.
13. The filter device according to claim 4, characterized in that it has a clogging indicator (87) which at a back pressure which exceeds a defined threshold value on the dirty side (25) of the filter housing (1) generates an indicator signal and that the closing force of the spring arrangement (61, 63) of the valve arrangement (55) is dimensioned such that the valve arrangement remains in the blocking position at a fluid pressure which acts on the sealing body (57) for purposes of opening and which is higher than the threshold value that generates the indicator signal.
14. A filter element (9) for use in a filter device according to claim 1, which on at least one end has an end cap (17) which forms an enclosure for the pertinent end edge of a filter material (23, 35) and which can be fixed on an element receiver (13) which interacts with the bottom part (5) of a pertinent filter housing (1) for fixing the filter element (9) in a functional position, characterized in that the end cap (17) has an axially projecting threaded connection (73) which in the filtration process forms the fluid outlet from the filter cavity (19) which forms the clean side, which threaded connection can be screwed to the element receiver (13) and which is provided with a control device (79, 83) which in the course of screw coupling acts on the valve arrangement (55) to unblock it, which arrangement normally blocks fluid passage (53) through the element receiver (13).