1. An imaging apparatus, comprising:
photographic control means for controlling a photographing behavior in accordance with an input of a direction for taking a photograph;
switching means for switching between an active state of the imaging apparatus and a low power state lower in power consumption than the active state;
optical finder means for introducing a photographic subject light entered via a photographic optical system into a finder window along a predetermined light path;
transmissive display means provided on the predetermined light path and having a display screen capable of switching between a transmission state that transmits the photographic subject light and a low transmission state lower in transmittance than in the transmission state; and
display control means for controlling the transmittance of the display screen between the transmission state and the low transmission state;
wherein the photographic control means has photography prohibition means for setting in a photography prohibited state in which the photographing behavior is not performed even when the direction for taking the photograph is inputted; and
wherein the display control means has means for putting a predetermined region in the display screen into the low transmission state in a case that the photography prohibited state is set in the low power state.
2. The imaging apparatus according to claim 1, further comprising:
means for shifting the imaging apparatus into a state of a power source being turned off in accordance with an operational input to a predetermined operation member;
wherein the low power state is the state of the power source being turned off.
3. The imaging apparatus according to claim 1, further comprising:
means for shifting the imaging apparatus into a power saving state in a case that an operational input to the imaging apparatus is not carried out for a certain period of time;
wherein the low power state is the power saving state.
4. The imaging apparatus according to claim 1, wherein the predetermined region includes an entire region on the display screen possible to be visually recognized in the finder window.
5. A display control method, comprising the steps of:
controlling a photographing behavior in an imaging apparatus in accordance with an input of a direction for taking a photograph;
switching between an active state of the imaging apparatus and a low power state lower in power consumption than in the active state; and
controlling a display screen of transmissive display means, which is provided on a light path of optical finder means for introducing a photographic subject light entered via a photographic optical system into a finder window and is capable of switching between a transmission state that transmits the photographic subject light and a low transmission state lower in transmittance than in the transmission state, regarding the transmittance between the transmission state and the low transmission state;
wherein the photographic controlling has a step of prohibiting photography that sets in a photography prohibited state in which the photographing behavior is not performed even when the direction for taking the photograph is inputted; and
wherein the display controlling has a step of putting a predetermined region in the display screen into the low transmission state in a case of setting in the photography prohibited state in the low power state.
6. An imaging apparatus, comprising:
a photographic control device controlling a photographing behavior in accordance with an input of a direction for taking a photograph;
a switching device switching between an active state of the imaging apparatus and a low power state lower in power consumption than the active state;
an optical finder device introducing a photographic subject light entered via a photographic optical system into a finder window along a predetermined light path;
a transmissive display device provided on the predetermined light path and having a display screen capable of switching between a transmission state that transmits the photographic subject light and a low transmission state lower in transmittance than in the transmission state; and
a display control device controlling the transmittance of the display screen between the transmission state and the low transmission state;
wherein the photographic control device has a photography prohibition device setting in a photography prohibited state in which the photographing behavior is not performed even when the direction for taking the photograph is inputted; and
wherein the display control device has a device putting a predetermined region in the display screen into the low transmission state in a case that the photography prohibited state is set in the low power state.
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 method of processing to-be-transmitted data packets based on transmission time interval in a sending device of a wireless communication network, comprising the steps of:
a) according to said transmission time interval, determining a transmission queue of component data packets corresponding to the transmission time based on a to-be-transmitted data packet;
b) generating a sub-header for each component data packet in said transmission queue in accordance with needs, which comprises the following information of the component data packet:
original data packet ID for indicating the original data packet which the component data packet belongs to;
segmentation processing ID for indicating times of segmentation happened to said original data packet in order to obtain said component data packet, and the data segment which said component data packet belongs to after each segmentation;
data amount ID for indicating the data amount of the data portion of said component data packet;
c) generating a transmitted data packet based on each of said generated sub-headers and data portions of the respective component data packets in said transmission queue, whose header portion contains component number indicating information for indicating the number of component data packets contained in said transmitted data packet.
2. The method according to claim 1, characterized in that said step a further comprises:
a1) according to said transmission time interval, calculating the transmittable data amount in said transmission time interval;
a2) judging whether or not the data amount of the first-order data packet in the to-be-transmitted data packets is larger than said transmittable data amount;
a3) if the data amount of said first-order data packet is larger than said transmittable data amount, segmenting the first-order data packet into a first data segment and a second data segment, adding said first data segment into the transmission queue and using said second data segment as a new first-order data packet, wherein the data amount of said first data segment is equal to the transmittable data amount.
3. The method according to claim 2, characterized in that said step b comprises:
b\u2032) generating sub-headers for said first data segment and said second data segment respectively, each of the generated sub-header containing:
original data packet ID for indicating an original data packet which the data segment belongs to;
segmentation processing ID for indicating times of segmentation happened to the original data packet in order to obtain the data segment, and the data segment which said data segment belongs to after each segmentation;
data amount indicating information for indicating the data amount of the data portion of said data segment;
wherein said segmentation processing ID comprises:
segmentation processing time ID for indicating times of segmentation happened to the original data packet in order to obtain said data segment;
data segment ID for indicating the data segment which said data segment belongs to after each segmentation during the processing of obtaining said data segment by the original data packet.
4. The method according to claim 2, characterized in that said step a further comprises:
a3\u2032) if the data amount of said first-order data packet is less than or equal to said transmittable data amount, adding said first-order data packet into the transmission queue as a component data packet, using the difference between said transmittable data amount and the data amount of said first-order data packet as a new transmittable data amount, taking the next data packet to said first-order data packet as a new first-order data packet, and repeating step a2.
5. The method according to claim 3, characterized in that said step b further comprises:
judging whether or not the to-be-transmitted data packet corresponding to the component data packet is the second data segment obtained from the previous segmentation processing;
if said to-be-transmitted data packet is the second data segment obtained from the previous segmentation, generating a sub-header for the component data packet based on the previously generated sub-header for said to-be-transmitted data packet; said step b\u2032 further comprises:
if said to-be-transmitted data packet is the second data segment obtained from the previous segmentation, then generating sub-headers for said first data segment and said second data segment obtained from the current segmentation based on the previously generated sub-header for said to-be-transmitted data packet.
6. The method according to claim 1, characterized in that said step c comprises:
generating a header portion of said transmitted data packet based on sub-headers generated for respective component data packets in said transmission queue, said header portion comprising component number indicating information for indicating the number of component data packets contained in said transmitted data packet.
7. The method according to claim 1, characterized in that said step c comprises:
c1) adding the sub-header of the current component data packet in the transmission queue into the header portion of the transmitted data packet;
c2) according to the segmentation processing ID contained in the sub-header of the component data packet, judging whether or not times of segmentation happened to the corresponding original data packet in order to obtain said component data packet is zero;
c3) if times of segmentation happened to said corresponding original data packet in order to obtain said component data packet is not zero, judging whether or not a predefined condition is met;
c4) if the predefined condition is met, taking the next component data packet to the current component data packet in the transmission queue as a new current component data packet, and performing c1)-c2) and corresponding subsequent operations on it;
c5) adding the data portion of each component data packet to the data portion of the transmitted data packet in the same position relationship as the sub-header of said each component data packet in said transmission queue in the header portion of the transmitted data packet.
8. The method according to claim 7, characterized by further comprising:
c4\u2032) if the predefined condition is not met, switching the sub-header of said current component data packet with the previous sub-header to the sub-header of said current component data packet in the header portion of the transmitted data packet, and returning to step c3).
9. The method according to claim 7, characterized by further comprising:
c3\u2032) if times of segmentation happened to the original data packet in order to obtain said component data packet is zero, judging whether or not in the header portion of said transmitted data packet, there is a characteristic sub-header previous to the sub-header corresponding to said current component data packet, the segmentation processing ID contained in said characteristic sub-header indicating no segmentation happened to an original data packet in order to obtain the component data packet corresponding to the characteristic sub-header;
if there is said characteristic sub-header, deleting the segmentation processing ID thereof from the sub-header corresponding to said current component data packet, taking the next component data packet to said current component data packet in the transmission queue as a new current component data packet, and performing c1-c2 and corresponding subsequent operations on it;
if there is no said characteristic sub-header, taking the next component data packet to said current component data packet in the transmission queue as a new current component data packet, and performing c1-c2 and corresponding subsequent operations on it.
10. The method according to claim 7, characterized in that said predefined condition is that in the header portion of the transmitted data packet, the segmentation processing ID contained in the previous sub-header to the sub-header of said current component data packet indicates that times of segmentation happened to an original data packet in order to obtain the component data packet corresponding to the previous sub-header is not zero, or indicates that the sub-header of said current component data packet is already at the top of the header portion of the transmitted data packet.
11. The method according to claim 1, characterized in that said component data packet and said to-be-transmitted data packet each comprise an original data packet andor data segments obtained from segmenting an original data packet or data segment.
12. A processing device for processing to-be-transmitted data packets based on transmission time interval in a sending device of a wireless communication network, comprising:
determining means for, according to said transmission time interval, determining a transmission queue of component data packets corresponding to the transmission time based on a to-be-transmitted data packet;
first generating means for generating a sub-header for each component data packet in said transmission queue in accordance with needs, which comprises the following information of the component data packet:
original data packet ID for indicating the original data packet which the component data packet belongs to;
segmentation processing ID for indicating times of segmentation happened to said original data packet in order to obtain said component data packet, and the data segment which said component data packet belongs to after each segmentation;
data amount ID for indicating the data amount of the data portion of said component data packet;
second generating means for generating a transmitted data packet based on each of said generated sub-headers and data portions of the respective component data packets in said transmission queue, whose header portion contains component number indicating information for indicating the number of component data packets contained in said transmitted data packet.
13. The processing device according to claim 12, characterized in that said determining means further comprises:
calculating means for calculating a transmittable data amount in the transmission time according to said transmission time interval;
first judging means for judging whether or not the data amount of the first-order data packet in the to-be-transmitted data packets is larger than said transmittable data amount;
segmenting means for, if the data amount of said first-order data packet is larger than said transmittable data amount, segmenting the first-order data packet into a first data segment and a second data segment, adding said first data segment into the transmission queue and using said second data segment as a new first-order data packet, wherein the data amount of said first data segment is equal to the transmittable data amount.
14. The processing device according to claim 13, characterized in that said first generating means is further used for generating sub-headers for said first data segment and said second data segment respectively, each of the generated sub-header containing:
original data packet ID for indicating an original data packet which the data segment belongs to;
segmentation processing ID for indicating times of segmentation happened to the original data packet in order to obtain the data segment, and the data segment which said data segment belongs to after each segmentation;
data amount indicating information for indicating the data amount of the data portion of said data segment;
wherein said segmentation processing ID comprises:
segmentation processing time ID for indicating times of segmentation happened to the original data packet in order to obtain said data segment;
data segment ID for indicating the data segment which said data segment belongs to after each segmentation during the processing of obtaining the data segment by the original data packet.
15. The processing device according to claim 13, characterized in that said determining means further comprises:
first controlling means for, if the data amount of said first-order data packet is less than or equal to said transmittable data amount, adding said first-order data packet into the transmission queue as a component data packet, using the difference between the transmittable data amount and the data amount of said first-order data packet as a new transmittable data amount, taking the next data packet to said first-order data packet as a new first-order data packet, and controlling said judging means to perform operations on the new first-order data packet.
16. The processing device according to claim 15, characterized by further comprising:
second judging means for judging whether or not the to-be-transmitted data packet corresponding to the component data packet is the second data segment obtained from the previous segmentation processing,
wherein said first generating means is further used for, if said to-be-transmitted data packet is the second data segment obtained from the previous segmentation, generating a sub-header for the component data packet based on the previously generated sub-header for said to-be-transmitted data packet;
and if said to-be-transmitted is the second data segment obtained from the previous segmentation, then generating sub-headers for the first data segment and the second data segment obtained from the current segmentation based on the previously generated sub-headers for said to-be-transmitted data packet.
17. The processing device according to claim 12, characterized in that said second generating means comprises: Component number determining means for generating a header portion of said transmitted data packet based on sub-headers generated for respective component data packets in said transmission queue, said header portion comprising component number indicating information for indicating the number of component data packets contained in said transmitted data packet.
18. The processing device according to claim 12, characterized in that said second generating means further comprises:
adding means for adding the sub-header of the current component data packet in the transmission queue to the header portion of the transmitted data packet;
third judging means for, according to the segmentation processing ID contained in the sub-header of the component data packet, judging whether or not times of segmentation happened to a corresponding original data packet in order to obtain the component data packet is zero;
wherein said third judging means is further used for, if times of segmentation happened to said corresponding original data packet in order to obtain said component data packet is not zero, judging whether or not a predefined condition is met;
second controlling means for, if the predefined condition is met, taking the next component data packet to the current component data packet in the transmission queue as a new current component data packet, and performing c1-c2 and corresponding subsequent operations on it;
wherein said adding means is further used for adding the data portion of each component data packet to the data portion of the transmitted data packet in the same position relationship as the sub-header of said each component data packet in said transmission queue in the header portion of the transmitted data packet.
19. The processing device according to claim 18, characterized in that said second generating means further comprises:
switching means for, if the predefined condition is not met, switching the sub-header of said current component data packet with the previous sub-header to the sub-header of said current component data packet in the header portion of the transmitted data packet;
and third judging means is further used for, after said switching, judging whether or not the predefined condition is met.
20. The processing device according to claim 18, characterized in that said third judging means is further used for, if times of segmentation happened to the original data packet in order to obtain said component data packet is zero, judging whether or not in the header portion of said transmitted data packet, there is a characteristic sub-header previous to the sub-header corresponding to the current component data packet, a segmentation processing ID contained in said characteristic sub-header indicating no segmentation happened to an original data packet in order to obtain the component data packet corresponding to the characteristic sub-header; said second generating means further comprises deleting means for, if there is said characteristic sub-header, deleting the segmentation processing ID thereof from a sub-header corresponding to said current component data packet;
said second controlling means is further used for, if there is no said characteristic sub-header, taking the next component data packet to the current component data packet in the transmission queue as a new current component data packet, and controlling said adding means and said third judging means to perform corresponding operations on the new current component data packet;
and after deleting the segmentation processing ID thereof from the sub-header corresponding to said current component data packet, taking the next component data packet to the current component data packet in the transmission queue as a new current component data packet, and controlling said adding means and said third judging means to perform corresponding operations on the new current component data packet.
21. The processing device according to claim 18, characterized in that said predefined condition is that in the header portion of the transmitted data packet, the segmentation processing ID contained in the previous sub-header to the sub-header of said current component data packet indicates that times of segmentation happened to an original data packet in order to obtain the component data packet corresponding to the previous sub-header is not zero, or indicates that the sub-header of said current component data packet is already at the top of the header portion of the transmitted data packet.
22. The processing device according to claim 12, characterized in that said component data packet and said to-be-transmitted data packet each comprise an original data packet andor data segments obtained from segmenting an original data packet or data segment.
23. A method of parsing a transmitted based on transmission time interval in a receiving device of a wireless communication network, comprising the steps of:
I) extracting component number indicating information from the header portion of said transmitted data packet;
II) extracting the first-order sub-header from the header portion of said transmitted data packet;
III) according to segmentation processing information contained in said first-order sub-header, judging whether or not times of segmentation happened to an original data packet in order to obtain the component data packet corresponding to said first-order sub-header is zero;
IV) if times of segmentation happened to the original data packet in order to obtain the component data packet corresponding to said first-order sub-header is not zero, extracting the corresponding data portion from the data portion of said transmitted data packet and storing it to a buffer;
V) using the next sub-header to said first-order sub-header in the header portion of said transmitted data packet as a new first-order sub-header, and repeating steps II) and III).
24. The method according to claim 23, characterized by further comprising:
IV\u2032) if times of segmentation happened to the original data packet in order to obtain the corresponding component data packet is zero, extracting data portions of respective component data packets following to the data portion of said component data packet in the transmitted data packet according to the component number indicating information of said transmitted data packet, for sending.
25. A parsing device for parsing a received transmitted data packet based on transmission time interval in a receiving device of a wireless communication network, comprising:
extracting means for extracting component number indicating information from the header portion of said transmitted data packet,
wherein said extracting means is further used for extracting the first-order sub-header from the header portion of said transmitted data packet;
judging means for, according to the segmentation processing information contained in said first-order sub-header, judging whether or not times of segmentation happened to the original data packet in order to obtain the component data packet corresponding to said first-order sub-header is zero,
wherein said extracting means is further used for extracting the corresponding data portion from the data portion of said transmitted data packet and storing it into a buffer if times of segmentation happened to the original data packet in order to obtain the component data packet corresponding to said first-order sub-header is not zero;
the parsing device further comprising controlling means for using the next sub-header to the first-order sub-header in the header portion of said transmitted data packet as a new first-order sub-header to control said extracting means and said judging means to perform corresponding operations on the new first-order sub-header.
26. The parsing device according to claim 25, characterized in that said extracting means is further used for,
if times of segmentation happened to the original data packet in order to obtain the corresponding component data packet is zero, extracting data portions of respective component data packets following to the data portion of said component data packet in the transmitted data packet according to the component number indicating information of said transmitted data packet, for sending.
27. A processing device according to claim 12 implemented in a sending device in a wireless communication network.
28. A parsing device according to claim 25 implemented in a receiving device in a wireless communication network.
29. A processing device according to claim 12 implemented in a communication device in a wireless communication network as a part of a sending device, the communication device further comprising a receiving device.