What is claimed is:
1. Photocatalyst granules comprising 10% by weight or more of photocatalyst particles and silica particles.
2. Photocatalyst granules according to claim 1, wherein a filler is comprised.
3. Photocatalyst granules according to claim 2, wherein the filler is at least one selected from magnesium silicate, aluminum silicate, calcium silicate, sodium silicate, calcium sulfate, calcium carbonate, lime, clay mineral, aluminum salt, ceramics, active carbon, zeolite, inorganic whisker, and inorganic fiber.
4. Photocatalyst granules according to claim 1, wherein the photocatalyst particles are titanium dioxide.
5. Photocatalyst granules according to claim 1, wherein a particle diameter of the silica is within a range of 30-50 nm.
6. Photocatalyst granules according to claim 1, wherein the maximum length portion of the photocatalyst granules is within a range of 1-10 mm and the minimum length portion of the photocatalyst granules is within a range of 0.1-10 mm.
7. Photocatalyst granules according to claim 1, wherein the surface is uneven.
8. A method of preparing photocatalyst granules, which comprises; a) preparing a mixture of photocatalyst particles and colloidal silica; b) molding said mixture; and c) drying the molded mixture.
9. A method of preparing Photocatalyst granules according to claim 8, wherein the colloidal silica comprises 10-50% by weight of silica particles and water.
10. A method of preparing Photocatalyst granules according to claim 9, wherein the colloidal silica comprises 0.2% by weight or less of an alkali component.
11. A method of preparing Photocatalyst granules according to claim 8, wherein the mixture comprises a filler.
12. A method of preparing photocatalyst granules according to claim 8, wherein the molding is conducted by using any molding machine selected from a granulator, pelletizer, extruder, and injection molding machine.
13. A method of preparing photocatalyst granules according to claim 8, wherein the photocatalyst particles are titanium dioxide.
14. A method of preparing photocatalyst granules according to claim 13, wherein the molding and drying are conducted at a temperature of 600 C. or less.
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. Method for controlling the emission power (Ic) of a sending station (MT), in which
the sending station (MT) transmits a signal for transmission of data (c1) to a receiving station (AP),
the receiving station (AP) determines a measured value (c1*) of the received signal, which depends on the data transmitted by the signal (c1) and transmits it to the sending station (MT) as control information for controlling its emission power (Ic).
and the sending station (MT), after receiving the measured value (c1*) of previously sent data (c1) sends correction data (c2) for this previously sent data (c1) to the receiving station (AP) which depends on the relevant measured value (c1*)
2. Method in accordance with claim 1, in which
the sending station (MT) determines from the measured value (c1*) the extent to which the emission power (Ic1) of the originally sent data (c1) deviates from the reception power (Ic1*) of the received data (c1*) at the receiving station (AP) and
subsequently sends data (c2) or data correction values (c2) with the appropriate emission power correction (Ic1).
3. Method in accordance with claim 1, in which the sending of the signal with the data (c1) is undertaken with a emission power (Ic1) below the Shannon capacity, especially the sending back of the assigned measured value (c1*) is undertaken above the Shannon capacity.
4. Method in accordance with claim 1 in which the measured value (c1*) is sent back in such as way as to make interference effects (n(t)) during its transmission negligible.
5. Method in accordance with claim 3, in which the measured value (c1*) is sent back from the receiving station (AP) with a significantly higher emission power than the emission power (Ic1) of the original sending station (MT).
6. Method in accordance with claim 3, in which the measured value (c1*) is sent back using an encoding or redundancy method.
7. Method in accordance with claim 1, in which the correction data (c2) correspond to a correction factor or an additive correction value.
8. Method in accordance with claim 1, in which the correction data (c2) exists as newly transferred data (c1).
9. Method in accordance with claim 8, in which the correction data (c2) is created from the originally sent data (c1) with an additive or subtractive power difference (Ic1) and on the receiver side (AP) the correction data (c2) is processed with the original data (c1) especially added to it and divided by the number of added values.
10. Method in accordance with claim 8, in which after data is sent (c1) this data which has been corrected if necessary (c2, c3, c4) is transmitted repeatedly a specified number of times and jointly processed on the receiver side.
11. Method in accordance with claim 1, in which the measured value(c1*) is a reception power amplitude value of the data received by the receiving station (AP) with the signal.
12. Method in accordance with claim 11, in which as regards deviation between sent power amplitude values (Ic1) and received power amplitude values (Ic1*) a statistical evaluation is performed and taken into account for future transmissions of data (c4) andor data correction values.
13. Receiving station (AP) for a communications system, with the receiving station including the following devices
a device for determining a measured value (c1*) of a received signal which depends on the data (c1) transmitted by the signal,
a device for sending the measured value (c1*) to a station sending the signal (MT) as control information for controlling the emission power (Ic) of the sending station (MT).
and a device for receiving correction data (c2) sent from the sending station (MT) for the data sent previously (c1), with the correction data (c2) depending on the relevant measured value (c1*).
14. Sending station (MT) for a communications system with the sending station including the following devices
a send device for transmitting data (c1) by means of a signal to a receiving station (AP),
a receive device for receiving a measured value (c1*) of the signal received by the receiving station which is dependent on the data (c1) transmitted by the signal,
a device for controlling the emission power (Ic), which takes account of the measured value (c1*) as control information when controlling the emission power
and a device for sending correction data (c2) for the previously transmitted data (c1), with the correction data (c2) depending on the relevant measured value (c1*).