1. An optical transmission apparatus communicable with a plurality of subscriber apparatuses, comprising:
a delay measurement instruction optical packet transmission part transmitting a delay measurement instruction optical packet;
a reception part receiving a delay measurement response optical packet returned from each of the plurality of subscriber apparatuses;
a delay measuring part detecting a response delay time from each subscriber apparatus based on reception timing of each of the delay measurement response optical packets;
a detection part detecting a received optical level of each of the delay measurement response optical packets received by the reception part; and
a state determination part determining a quality of an optical transmission state between the optical transmission apparatus and each subscriber apparatus based on the received optical level of the delay measurement response optical packet of each of the plurality of subscriber apparatuses.
2. The optical transmission apparatus according to claim 1, wherein
the delay measurement instruction optical packet transmission part transmits the delay measurement instruction optical packet including an identifier of the subscriber to be measured, and
the delay measuring part detects the response delay time from each subscriber based on the reception timing of the delay measurement response optical packet from the subscriber to be measured.
3. The optical transmission apparatus according to claim 1, further comprising a message transmission part that, as a result of the optical transmission state between the optical transmission apparatus and each subscriber determined by the state determination part, transmits a message to control an optical output level to subscribers having a received optical level below a desired level.
4. The optical transmission apparatus according to claim 3, wherein the message includes an identifier of the subscriber to be controlled.
5. A subscriber apparatus connected to an optical transmission apparatus communicable with a plurality of subscriber apparatuses, comprising:
a delay measurement response interface part that receives a delay measurement instruction optical packet transmitted from the optical transmission apparatus to determine whether or not the delay measurement instruction optical packet is addressed to the subscriber apparatus and, if the delay measurement instruction optical packet is addressed to the subscriber apparatus, outputs a delay measurement response optical packet; and
an emission quantity control part controlling an optical output level of the delay measurement response optical packet when a message to control the optical output level is received after the delay measurement response optical packet is output.
6. The subscriber apparatus according to claim 5, wherein the delay measurement instruction optical packet and the message contain an identifier of the subscriber apparatus.
7. An optical communication system performing communication by means of an optical network, comprising:
an optical transmission apparatus comprising:
a delay measurement instruction optical packet transmission part transmitting a delay measurement instruction optical packet;
a reception part receiving a delay measurement response optical packet returned from each of a plurality of subscriber apparatuses;
a delay measuring part detecting a response delay time from each subscriber apparatus based on reception timing of each of the delay measurement response optical packets;
a detection part detecting a received optical level of each of the delay measurement response optical packets received by the reception part; and
a state determination part determining a quality of an optical transmission state between the optical transmission apparatus and each subscriber apparatus based on the received optical level of the delay measurement response optical packet of each of the plurality of subscriber apparatuses; and
a plurality of subscriber apparatuses, each subscriber apparatus comprising:
a delay measurement response interface part that receives a delay measurement instruction optical packet transmitted from the optical transmission apparatus to determine whether or not the delay measurement instruction optical packet is addressed to the subscriber apparatus and, if the delay measurement instruction optical packet is addressed to the subscriber apparatus, outputs a delay measurement response optical packet; and
an emission quantity control part controlling an optical output level of the delay measurement response optical packet when a message to control the optical output level is received after the delay measurement response optical packet is output.
8. The optical communication system according to claim 7, wherein
the optical transmission apparatus further comprises a message transmission part that, when the optical level of the delay measurement response optical packet is not within a range of desired levels, transmits a message to the applicable subscriber apparatus, and
when the state determination part recognizes that the optical level of the delay measurement response optical packet is not within the range of desired levels,
the message transmission part transmits an identifier of the applicable subscriber apparatus and a level adjustment message containing increasedecrease index value information to increasedecrease the optical output level of the delay measurement response optical packet so that the optical level of the delay measurement response optical packet enters a range of desired levels.
9. The optical communication system according to claim 8, wherein
when the message is received, the delay measurement response interface part in the subscriber apparatus controls the emission quantity control part based on the increasedecrease index value information to increasedecrease the optical output level and returns the delay measurement response optical packet after the optical output level is adjusted, and
when the state determination part of the transmission apparatus recognizes that the optical level of the delay measurement response optical packet received after the level adjustment message is transmitted is not within the range of desired levels,
the message transmission part transmits a replacement message containing a replacement instruction to replace a light-emitting device set up in the applicable subscriber apparatus.
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 suspended sleeping bag (1; 31) with a top and a bottom section (2, 3; 30) and with attaching elements at the head and foot ends (18, 20) that converge toward each other in the region of a gathering point (17, 19) at each of the head and the foot ends (18, 20), particularly in the form of ropes (4, 5), cords, tapes, pieces cut from a web of fabric, or another, tear-resistant material, for the purpose of attachment at two mutually spaced apart attachment points (46, 47), the bottom section (3; 30), unlike the top section (2), absorbing tensile forces in the longitudinal direction and conveying them to the attachment points (46, 47) along lines that converge in an approximately ray-like manner in the region of one or the other of the gathering or attachment points (17, 19), characterized in that
(a) the bottom section (3; 30) of the sleeping bag is so cut to shape and the length or cut shape of the attaching elements (4, 5) is so calculated that a line extending along the periphery of the bottom section (3; 30) of the sleeping bag from one gathering point (17, 19) to the other is shorter than a line extending (roughly) centrally along or through the bottom section (3; 30) of the sleeping bag between said points (17, 19); and
(b) the top section (2) of the sleeping bag is connected to the lateral edges of the bottom section (3; 30) of the sleeping bag.
2. The suspended sleeping bag (1; 31) as recited in claim 1, characterized in that a line extending along the periphery of the bottom section (3; 30) of the sleeping bag between one gathering point (17, 19) and the other is free of bends.
3. The suspended sleeping bag (1; 31) as recited in claim 1 wherein the bottom section (3; 30) of the sleeping bag is se cut to shape and the length of the attaching elements (4, 5) is such that between the periphery of the bottom section (3; 30) of the sleeping bag and the longitudinal center line thereof there is a line with no bends or undulations, extending along or through the bottom section (3; 30) of the sleeping bag from one gathering point (17, 19) to the other, which is at least the same length as all other lines extending along and through the bottom section (3; 30) of the sleeping bag between the gathering points (17, 19).
4. The suspended sleeping bag as recited in claim 3, characterized in that a flat region (32) enclosed by the two generally mutually symmetrical, longest regions of the bottom section (3; 30) of the sleeping bag has a shape adapted to the human body.
5. The suspended sleeping bag as recited in claim 4, characterized in that the flat region (32) adapted to the human body has longitudinal edges (33) that are at least regionally convex.
6. The suspended sleeping bag as recited in claim 4 wherein a broadest point of the flat region (32) adapted to the human body is located substantially at the height of a sleeper’s shoulders and is shifted to the upper or head half of the suspended sleeping bag.
7. The suspended sleeping bag as recited in claim 1, wherein the bottom section (3; 30) of the sleeping bag comprises, outside of the reclining area for a person at at least one of the head and foot ends (18, 20), a generally trapezoidally tapering cut shape of a tear-resistant material, whose broader main face is disposed on the region serving as a sleeping bag and whose narrower face is provided with an attaching means comprising at least one of a rope, hook and eye.
8. The suspended sleeping bag as recited in claim 5, wherein the bottom section (30) of the sleeping bag, in the region of the periphery thereof, adjacent to each of the longitudinal edges (33) of the flat region (32) adapted to the human body, is connected to at least one marginal strip (39) whose peripheral boundary (42) follows a concave path.
9. The suspended sleeping bag as recited in claim 8, wherein blanks for the marginal strips (39) are generally banana-shaped.
10. The suspended sleeping bag as recited in claim 8 wherein two longitudinal edges (42, 43) of the marginal strip (39) of the bottom section (30) of the sleeping bag approach each other in their end regions.
11. The suspended sleeping bag as recited in claim 9 wherein the blanks (29) for the marginal strips (39) of the bottom section (30) of the sleeping bag are separated from the blank for the flat region (32) thereof adapted to the human body, at least partially by means of cut-ins (41) extending in a longitudinal direction (40) of the blank (29) in the region of transverse ends (34) of the bottom section (30) of the sleeping bag.
12. The suspended sleeping bag as recited in claim 4 wherein the top section (2) of the sleeping bag and all blanks therefore collectively have a contour that generally corresponds to the flat region (32) of the bottom section (30) of the sleeping bag.
13. The suspended sleeping bag as recited in claim 4, wherein disposed in the region of the bottom section (3; 30) of the sleeping bag is an insulating pad (10).
14. The suspended sleeping bag as recited in claim 13, and further comprising a pocket-shaped receptacle on an underside of the bottom section (3; 30) of the sleeping bag for receiving the insulating pad (10).
15. The suspended sleeping bag as recited in claim 14, wherein the insulating pad (10) is removably attached to a load-bearing fabric.
16. The suspended sleeping bag as recited in claim 15, wherein provided above the load-bearing fabric andor above the insulating pad (10) is a soft insert.
17. The suspended sleeping bag as recited in claim 1, wherein the attaching elements (4, 5) are connected to the head andor foot end (18, 20) of the bottom section (3; 30) of the sleeping bag.
18. The suspended sleeping bag as recited in claim 1, wherein more than two attaching ropes (4, 5) are provided at at least one of the head and foot ends (18, 20).