Abstract: An information communication method that enables communication between various devices is an information communication method of transmitting a signal using a change in luminance, and includes: determining a pattern of the change in luminance, by modulating the signal to be transmitted; and transmitting the signal, by a plurality of light emitters changing in luminance according to the determined pattern of the change in luminance, wherein the plurality of light emitters are arranged on a surface so that a non-luminance change area does not extend across the surface between the plurality of light emitters along at least one of a horizontal direction and a vertical direction of the surface, the non-luminance change area being an area in the surface outside the plurality of light emitters and not changing in luminance.

Abstract: An information communication method includes: obtaining a first image by capturing a subject; detecting a range of the subject from the first image; determining, from among a plurality of exposure lines, predetermined exposure lines for capturing the range of the subject; setting an exposure time so that, in a second image obtained using the predetermined exposure lines, a bright line appears according to a change in luminance of the subject; obtaining the second image including the bright line, by capturing the subject that changes in luminance using the predetermined exposure lines with the set exposure time; and demodulating data specified by a pattern of the bright line included in the obtained second image.

Abstract: An information communication method includes: obtaining a first image by capturing a subject; detecting a range of the subject from the first image; determining, from among a plurality of exposure lines, predetermined exposure lines for capturing the range of the subject; setting an exposure time so that, in a second image obtained using the predetermined exposure lines, a bright line appears according to a change in luminance of the subject; obtaining the second image including the bright line, by capturing the subject that changes in luminance using the predetermined exposure lines with the set exposure time; and demodulating data specified by a pattern of the bright line included in the obtained second image.

Abstract: An information communication method that enables communication between various devices includes: setting an exposure time of an image sensor so that, in an image obtained by capturing a subject by the image sensor, a bright line corresponding to an exposure line included in the image sensor appears according to a change in luminance of the subject; obtaining a bright line image including the bright line, by capturing the subject that changes in luminance by the image sensor with the set exposure time; and obtaining information by demodulating data specified by a pattern of the bright line included in the obtained bright line image, wherein in the obtaining of a bright line image, the bright line image is obtained by capturing light emitted from the subject and expanded by an optical system.

Abstract: An information communication method that enables communication between various devices includes: transmitting position information indicating a position of a terminal device; obtaining one or more sets of identification information of respective one or more devices and one or more sets of service information respectively associated with the one or more sets of identification information, and holding the one or more sets of identification information and the one or more sets of service information; setting an exposure time of an image sensor; obtaining a bright line image including a plurality of bright lines; obtaining identification information of a subject, by demodulating data specified by a pattern of the plurality of bright lines included in the obtained bright line image; and selecting service information associated with the identification information of the subject from the held one or more sets of service information, and presenting the service information to a user.

Abstract: An information communication method includes: setting an exposure time of an image sensor so that, in an image obtained by capturing a subject by the image sensor, a bright line corresponding to an exposure line included in the image sensor appears according to a change in luminance of the subject; capturing the subject that changes in luminance by the image sensor with the set exposure time, to obtain the image including the bright line; and obtaining information by demodulating data specified by a pattern of the bright line included in the obtained image.

Abstract: An information communication method includes: setting an exposure time of an image sensor so that, in an image obtained by capturing a subject by the image sensor, a bright line corresponding to an exposure line included in the image sensor appears according to a change in luminance of the subject; capturing the subject that changes in luminance by the image sensor with the set exposure time, to obtain the image including the bright line; and obtaining information by demodulating data specified by a pattern of the bright line included in the obtained image.

Abstract: An information communication method that enables communication between various devices includes: determining a pattern of a change in luminance, by modulating a first signal to be transmitted; transmitting the first signal, by all of a plurality of light emitting elements included in a light emitter changing in luminance in a same manner according to the determined pattern of the change in luminance; and transmitting a second signal to be transmitted, by each of the plurality of light emitting elements emitting light with one of two different luminance values so that a light and dark sequence of luminance appears in a space where the light emitter is placed.

Abstract: An information communication method that enables communication between various devices includes: determining a pattern of the change in luminance by modulating the signal to be transmitted; and transmitting the signal by a light emitter changing in luminance according to the determined pattern, wherein the pattern of the change in luminance is a pattern in which one of two different luminance values occurs in each arbitrary position in a predetermined duration, and in the determining, the pattern of the change in luminance is determined so that a luminance change position in the duration is different for each of different signals to be transmitted, the luminance change position being a position at which the luminance rises or a position at which the luminance falls.

Abstract: An information communication method that enables communication between various devices includes: determining a plurality of patterns of a change in luminance, by modulating a respective plurality of signals to be transmitted; and transmitting, by each of a plurality of light emitters changing in luminance according to any one of the determined plurality of patterns of the change in luminance, a signal corresponding to the pattern, wherein in the transmitting, each of the plurality of light emitters changes in luminance at a different frequency so that light of one of two types of light different in luminance is output per a time unit predetermined for the light emitter and that the time unit predetermined for the light emitter is different from a time unit predetermined for an other one of the plurality of light emitters.

Abstract: An information communication method that enables communication between various devices includes: setting an exposure time of an image sensor so that, in an image obtained by capturing a subject by the image sensor, a plurality of bright lines corresponding to a plurality of exposure lines included in the image sensor appear according to a change in luminance of the subject; obtaining a bright line image including the plurality of bright lines, by capturing the subject changing in luminance by the image sensor with the set exposure time; and obtaining information by demodulating data specified by a pattern of the plurality of bright lines included in the obtained bright line image, wherein exposure starts sequentially for the plurality of exposure lines each at a different time, and exposure of each of the plurality of exposure lines starts a predetermined blank time after exposure of its adjacent exposure line ends.

Abstract: An information communication method that enables communication between various devices includes: setting an exposure time of an image sensor; obtaining a bright line image including a bright line, by capturing a subject that changes in luminance by the image sensor with the set exposure time; setting a longer exposure time than the exposure time; obtaining a normal captured image by image capture by the image sensor with the longer exposure time; generating a synthetic image by specifying, in the normal captured image, a part that corresponds to the bright line included in the bright line image and superimposing a signal object on the normal captured image, the signal object being an image indicating the part; displaying the synthetic image; and obtaining information by demodulating data specified by a pattern of the bright line included in the obtained bright line image.

Abstract: An information communication method that enables communication between various devices includes: transmitting position information indicating a position of an image sensor; receiving an ID list; setting an exposure time of the image sensor; obtaining a bright line image including a bright line, by capturing a subject by the image sensor; obtaining information by demodulating data specified by a pattern of the bright line included in the obtained bright line image; and searching the ID list for identification information that includes the obtained information.

Abstract: An information communication method that enables communication between various devices includes: determining a pattern of a change in luminance; transmitting a signal by a light emitter changing in luminance; determining a sequence of first and second image units; and displaying an image including the first and second image units arranged according to the determined sequence, wherein in the displaying: for 0, the sequence of the first and second image units is determined so that a first image unit group and a second image unit group that have a same number of image units as each other are consecutive; and for 1, the sequence of the first and second image units is determined so that a first image unit group and a second image unit group that have different numbers of image units from each other are consecutive.

Abstract: A terminal device includes a connection environment check unit, a determination purpose port mapping command unit which issues a port mapping command to a lower layer NAT device, and a determination packet generation unit which generates a determination packet which is source-routed. Additionally, a determination packet transmitting unit transmits the determination packet, a determination packet receiving unit receives the determination packet transmitted from the determination packet transmitting unit, passing through the upper layer NAT device a and the lower layer NAT device a and arriving at the terminal device a, and a port number obtainment unit obtains a WAN-side port number of the lower layer NAT device a indicated in the received determination packet.

Abstract: A communication device including an image capturing device having a RF-ID unit for performing proximity wireless communication with a RF-ID reader/writer connected via an infrared communication path to a TV. The image capturing device includes: an antenna for the proximity wireless communication; a data receiving unit receiving an input signal from the RF-ID reader/writer; a nonvolatile second memory storing at least UID and an execution program; and a data transmission unit transmitting the UID and the execution program to the RF-ID reader/writer via the antenna according to the input signal. The UID is used to identify the communication device, and the execution program is executed by the TV with reference to the UID. The transmitted UID and execution program are transferred to the TV via the RF-ID reader/writer.

Abstract: A communication device, which can simplify various setting processes, transmits, to a server via a network, external device information received from an external device by using proximity wireless communication.

Abstract: A communication medium determining apparatus determines a communication medium in use for communication between two devices on a network. The apparatus includes a communication performance obtaining unit which obtains values indicating transmission speeds in a given communication path when a device which decreases transmission speed in a specific communication medium when activated, is active and when the device is inactive. The apparatus further includes a communication medium determining unit which determines whether or not the communication through the given communication path is performed using the specific communication medium. This determination is based on a speed decrease value indicating a decrease amount of the transmission speed in the specific communication medium caused by activation of the device, and a speed difference value which is a difference in the transmission speed obtained by the communication performance obtaining unit between when the device is active and when the device is inactive.

Abstract: A communication device including an image capturing device having a RF-ID unit for performing proximity wireless communication with a RF-ID reader/writer connected via an infrared communication path to a TV. The image capturing device includes: an antenna for the proximity wireless communication; a data receiving unit receiving an input signal from the RF-ID reader/writer; a nonvolatile second memory storing at least UID and an execution program; and a data transmission unit transmitting the UID and the execution program to the RF-ID reader/writer via the antenna according to the input signal. The UID is used to identify the communication device, and the execution program is executed by the TV with reference to the UID. The transmitted UID and execution program are transferred to the TV via the RF-ID reader/writer.

Abstract: The present invention can prevent a fuzzy image, which is caused due to insufficient bandwidth when the bandwidth necessary for transmitting a content cannot be secured, to be displayed on a display device. When a relay apparatus (100) receives, from a DNS server, a DNS response packet regarding a domain name of a server which transmits a content, a condition judging section (210) in the relay apparatus (100) judges whether a required bandwidth for the content corresponding to the domain name can be secured in a communication path connecting to another relay apparatus (100). If the condition judging section (210) judges that the required bandwidth cannot be secured, a DNS modifying section (250) in the relay apparatus (100) rewrites a reply IP address included in the DNS response packet to an IP address of the relay apparatus (100).