1. A wireless receiver apparatus, executing a wireless communication with a plurality of wireless transmitting apparatuses, comprising:
a radio wave strength detection unit configured to detect a reception radio wave strength from a first wireless transmitting apparatus executing the wireless communication;
a data source switching pattern storage unit configured to store a switching pattern to switch a data source of the wireless communication to a second wireless transmitting apparatus based on the reception radio wave strength from the first wireless transmitting apparatus;
a communication control unit configured to switch the data source of the wireless communication to the second wireless transmitting apparatus, based on the switching pattern stored in the data source switching pattern storage unit, and a detection result from the radio wave strength detection unit; and
a wireless communication unit configured to execute the wireless communication with the first wireless communication apparatus or the second wireless transmitting apparatus, depending on control by the communication control unit.
2. The wireless receiver apparatus, as claimed in claim 1, wherein the switching pattern stored in the data source switching pattern storage unit is information specifying that switching the data source of the wireless communication to the second wireless transmitting apparatus is to be executed when the reception radio wave strength from the first wireless transmitting apparatus has been less than or equal to a threshold for a predetermined length of time.
3. The wireless receiver apparatus, as claimed in claim 1, wherein the data source switching pattern storage unit stores the switching pattern having associated with identification information about the first wireless transmitting apparatus and the second wireless transmitting apparatus,
wherein the communication control unit switches the data source of the wireless communication to the second wireless transmitting apparatus, based on the switching pattern having associated with the identification information of the first wireless transmitting apparatus and the second wireless transmitting apparatus, stored in the data source switching pattern storage unit, and the detection result from and the radio wave strength detection unit.
4. The wireless receiver apparatus, as claimed in claim 1, further comprising:
a display unit configured to display an existence of the first wireless communication apparatus executing the wireless communication by the wireless communication unit.
5. The wireless receiver apparatus, as claimed in claim 1, wherein data transmitted from the data source of the wireless communication is video and audio data, further comprising:
a video and audio compression unit configured to compress the video and audio data; and
a video and audio expansion unit configured to expand the compressed video and audio data.
6. A wireless communication method, executed by a wireless receiver apparatus executing a wireless communication with a plurality of wireless transmitting apparatuses, the method comprising:
detecting a reception radio wave strength from a first wireless transmitting apparatus executing the wireless communication;
storing a switching pattern to switch a data source of the wireless communication to a second wireless transmitting apparatus based on the reception radio wave strength from the first wireless transmitting apparatus, the switching pattern being stored in a data source switching pattern storage unit;
switching the data source of the wireless communication to the second wireless transmitting apparatus, based on the switching pattern stored in the data source switching pattern storage unit and a detection result from the radio wave strength detection unit; and
a wireless communication unit configured to execute the wireless communication with the first wireless communication apparatus or the second wireless transmitting apparatus, depending on control by the communication control unit.
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 coating fluid for forming a film, which comprises a polysiloxane (A) that consists essentially of the condensation polymerization product of a silicon compound of formula (1) as the essential component:
Si(OR1)4\u2003\u2003(1)
wherein R1 is a C1-5 hydrocarbon group, and
a compound (B) of the formula (2):
each of R2, R3, R4 and R5 which are independent of one another, is a hydrogen atom or a C1-5 organic group, hydroxyethyl or hydroxypropyl in an amount ranging from 0.06 to 0.20 mol of the compound of formula (B) per mol of silicon atoms of the polysiloxane (A).
2. The coating fluid for forming a film according to claim 1, wherein the polysiloxane (A) is a polysiloxane obtained by condensation polymerization of at least one silicon compound of the formula (1) and at least one silicon compound of the formula (3):
(R6)nSi(OR7)4-n\u2003\u2003(3)
wherein R6 is a hydrogen atom or a C1-20 organic group, R7 is a C1-5 hydrocarbon group, and n is an integer ranging from 1 to 3.
3. The coating fluid for forming a film according to claim 2, wherein the polysiloxane (A) is a polysiloxane obtained by condensation polymerization in a ratio ranging from 0.02 to 0.80 mol of the silicon compound of the formula (3) to 1 mol of the silicon compound of the formula (1).
4. The coating fluid for forming a film according to claim 1, wherein the polysiloxane (A) is a polysiloxane obtained by condensation polymerization of at least one silicon compound of the formula (1) and at least one silicon compound of the formula (4):
(R2\u2032)Si(OR3\u2032)3\u2003\u2003(4)
wherein R2\u2032 is a fluorinated C1-20 organic group, and R3\u2032 is a C1-5 hydrocarbon group.
5. A water repellent film obtained by applying the coating fluid for forming a film as defined in claim 4 on a substrate and curing it at a temperature ranging from 40 to 70\xb0 C.
6. An anti-reflection substrate having the water repellent film as defined in claim 5.
7. An anti-reflection film having the water repellent film as defined in claim 5.
8. The coating fluid for forming a film according to claim 4, wherein the polysiloxane (A) is a polysiloxane obtained by condensation polymerization of at least one silicon compound of the formula (1), at least one silicon compound of the formula (4) and at least one silicon compound of the formula (5)
(R8)nSi(OR9)4-n\u2003\u2003(5)
wherein R8 is a hydrogen atom or a C1-12 organic group having no fluorine, R9 is a C1-5 hydrocarbon group, and n is an integer ranging from 1 to 3.
9. A water repellent film obtained by applying the coating fluid for forming a film as defined in claim 8 on a substrate and curing it at a temperature ranging from 40 to 70\xb0 C.
10. An anti-reflection substrate having the water repellent film as defined in claim 9.
11. An anti-reflection film having the water repellent film as defined in claim 9.
12. The coating fluid for forming a film according to claim 1, wherein the polysiloxane (A) is a polysiloxane obtained by hydrolytic condensation polymerization of the silicon compound of the formula (1) as the essential component.
13. The coating fluid for forming a film according to claim 1, wherein the polysiloxane (A) is a polysiloxane obtained by heating a mixture of a silicon compound containing the silicon compound of the formula (1) as the essential component, a solvent and oxalic acid.
14. A film obtained by using the coating fluid for forming a film as defined in claim 1.
15. A cured film obtained by applying the coating fluid for forming a film as defined in claim 1 on a substrate and curing it at a temperature from 40 to 70\xb0 C.
16. A process for forming a film, which comprises:
applying the coating fluid for forming a film as defined in claim 1 on a substrate and curing it at a temperature ranging from 40 to 70\xb0 C.