1. An image pickup apparatus, comprising: an image pickup unit configured to take a still image; a temporary speech storing unit configured to input speech and continue storing speech for a predetermined time length while updating the speech; a speech period determining unit configured to determine a start timing and an end timing of obtaining the speech to have a photographing timing of the still image taken by the image pickup unit therebetween, in accordance with a period in which sound quality of the speech stored in the temporary speech storing unit satisfies a predetermined condition; a storing unit configured to store the still image taken by the image pickup unit, and the speech; a storage control unit configured to cut out the speech stored in the temporary speech storing unit for a period within the start timing to the end timing determined by the speech period determining unit, and to store the cut out speech in the storing unit in association with the still image taken by the image pickup unit; and a registering unit configured to register a voice print of an arbitrary person in advance; wherein the storage control unit cuts out speech for a period in which a voice print of the speech corresponds to the voice print of the person registered in the registering unit.
2. The apparatus according to claim 1, further comprising an image reconstructing unit configured, when a plurality of still images associated with cut out speech are stored in the storing unit, to create a new image file including the still images accompanied with speech, and to store the new image file in the storing unit.
3. An image pickup method for an image pickup apparatus including an image pickup unit configured to take a still image, a temporary speech storing unit configured to continue storing speech for a predetermined time length while updating the speech, a registering unit configured to register a voice print of an arbitrary person in advance, and a storing unit configured to store the still image taken by the image pickup unit, and the speech, the method comprising: determining a start timing and an end timing of obtaining the speech to have a photographing timing of the still image taken by the image pickup unit therebetween, in accordance with a period in which sound quality of the speech stored in the temporary speech storing unit satisfies a predetermined condition; and cutting out the speech stored in the temporary speech storing unit for a period within the determined start timing to the determined end timing in which a voice print of the speech corresponds to the voice print of the person registered in the registering unit, and storing the cut out speech in the storing unit in association with the still image taken by the image pickup unit.
4. A non-transitory computer-readable storage medium storing a program code to be executed that is executable by a computer built in an image pickup apparatus including an image pickup unit configured to take a still image, a temporary speech storing unit configured to continue storing speech for a predetermined time length while updating the speech, a registering unit configured to register a voice print of an arbitrary person in advance, and a storing unit configured to store the still image taken by the image pickup unit, and the speech, the program being executable to cause the computer to perform functions comprising: determining a start timing and an end timing of obtaining the speech to have a photographing timing of the still image taken by the image pickup unit therebetween, in accordance with a period in which sound quality of the speech stored in the temporary speech storing unit satisfies a predetermined condition; and cutting out the speech stored in the temporary speech storing unit for a period within the determined start timing to the determined end timing in which a voice print of the speech corresponds to the voice print of the person registered in the registering unit, and storing the cut out speech in the storing unit in association with the still image taken by the image pickup 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 transmission line pair comprising:
a first transmission line; and
a second transmission line which is so placed in adjacency to the first transmission line that a coupled line region is formed, the coupled line region having a coupled line length being 0.5 or more time an effective wavelength in the first transmission line at a frequency of a transmitted signal, wherein
in the coupled line region, the first transmission line comprises a first signal conductor which is placed on one surface which is either a top face of a substrate formed from a dielectric or semiconductor or an inner-layer surface parallel to the top face and which has a linear shape along a transmission direction thereof, and
the second transmission line comprises a second signal conductor which is placed on the one surface of the substrate and which partly includes a transmission-direction reversal region for transmitting a signal along a direction having an angle of more than 90 degrees with respect to the transmission direction within the plane of the placement, and which has a line length different from that of the first signal conductor,
wherein an absolute value of a difference between a product of the coupled line length and a square root of an effective dielectric constant of the first transmission line and a product of the coupled line length and a square root of an effective dielectric constant of the second transmission line is 0.5 or more time a wavelength at the frequency of the signal transmitted in the first transmission line or the second transmission line.
2. The transmission line pair as defined in claim 1, wherein an absolute value of a difference between a product of the coupled line length and a square root of an effective dielectric constant of the first transmission line and a product of the coupled line length and a square root of an effective dielectric constant of the second transmission line is 1 or more time a wavelength at the frequency of the signal transmitted in the first transmission line or the second transmission line.
3. The transmission line pair as defined in claim 1, wherein the transmission-direction reversal region contains a region for transmitting the signal toward a direction rotated 180 degrees with respect to the transmission direction.
4. The transmission line pair as defined in claim 1, further comprising, in the coupled line region, a proximity dielectric placed closer to the second transmission line than to the first transmission line.
5. The transmission line pair as defined in claim 4, wherein at least part of a surface of the second signal conductor is coated with the proximity dielectric.
6. The transmission line pair as defined in claim 1, wherein the second transmission line has an effective dielectric constant higher than an effective dielectric constant of the first transmission line, and
a signal transmitted in the first transmission line is higher in a transmission speed than a signal transmitted in the second transmission line.
7. The transmission line pair as defined in claim 6, wherein in the coupled line region, the first transmission line is a differential transmission line including a pair of two transmission lines.
8. The transmission line pair as defined in claim 1, wherein the second transmission line is a bias line for supplying electric power to active elements.
9. The transmission line pair as defined in claim 1, wherein in the coupled line region, the second transmission line has an effective dielectric constant different from an effective dielectric constant of the first transmission line.
10. The transmission line pair as defined in claim 9, wherein an effective-dielectric-constant difference setting region, in which a difference in effective dielectric constant between the first transmission line and the second transmission line is set, is allocated all over the coupled line region.
11. The transmission line pair as defined in claim 9, wherein the coupled line region includes:
an effective-dielectric-constant difference setting region in which a difference in effective dielectric constant between the first transmission line and the second transmission line is set, and
an effective-dielectric-constant difference non-setting region in which the difference in effective dielectric constant is not set, wherein
a line length of the effective-dielectric-constant difference non-setting region is shorter than 0.5 time the effective wavelength in the first transmission line.
12. The transmission line pair as defined in claim 11, wherein in the coupled line region, a line length of one of the effective-dielectric-constant difference non-setting regions placed in succession is shorter than 0.5 time the coupled line length.