Patent application number | Description | Published |
20120120107 | INFORMATION DISPLAY DEVICE, INTEGRATED CIRCUIT FOR DISPLAY CONTROL, DISPLAY CONTROL PROGRAM, AND DISPLAY CONTROL METHOD - Provided is an information display device that can improve readability even in case of an unstable reception condition when information is superimposed on taken images by means of optical space transmission and displayed on the taken images. | 05-17-2012 |
20120133815 | INFORMATION DISPLAY APPARATUS, DISPLAY CONTROL INTEGRATED CIRCUIT, AND DISPLAY CONTROL METHOD - An information display apparatus performs a visual light communication and superimposes light source information transmitted from a light source onto images captured in time sequence for display on a screen. The information display apparatus includes an imaging section for capturing an image in an imaging range, a cache memory sequentially caching the light source information transmitted from the light source in the image, a priority level setting section for setting a higher priority to the light source information, cached in the cache memory, in order starting from a light source closest to a current imaging range, and a communications information processing section for deleting the light source information cached in the cache memory in order starting from light source information having the lowest priority level. | 05-31-2012 |
20120141093 | CONTENT TRANSMISSION/RECEPTION SYSTEM - To provide a device that easily judges that content that has been edited and moved back differs from original content. A content transmission device | 06-07-2012 |
20130330088 | INFORMATION COMMUNICATION DEVICE - 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. | 12-12-2013 |
20130335592 | INFORMATION COMMUNICATION DEVICE - 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. | 12-19-2013 |
20130337787 | INFORMATION COMMUNICATION DEVICE - An information communication method includes: setting an exposure time of an image sensor to less than or equal to 1/2000 second so that, in an image obtained by capturing a subject by the image sensor, a stripe bright line parallel to a plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject; obtaining the image including the stripe bright line parallel to the plurality of exposure lines by, using the set exposure time, starting exposure sequentially for the plurality of exposure lines each at a different time; and obtaining information by demodulating data according to, in a pattern of the bright line included in the obtained image, a brightness change in a direction perpendicular to the plurality of exposure lines. | 12-19-2013 |
20140037296 | INFORMATION COMMUNICATION DEVICE - An information communication method includes: setting an exposure time of an image sensor to less than or equal to 1/2000 second so that, in an image obtained by capturing a subject by the image sensor, a stripe bright line parallel to a plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject; obtaining the image including the stripe bright line parallel to the plurality of exposure lines by, using the set exposure time, starting exposure sequentially for the plurality of exposure lines each at a different time; and obtaining information by demodulating data according to, in a pattern of the bright line included in the obtained image, a brightness change in a direction perpendicular to the plurality of exposure lines. | 02-06-2014 |
20140184914 | VIDEO DISPLAY METHOD - A video display method in which a visible light communication signal can be appropriately transmitted includes: Step SL | 07-03-2014 |
20140185860 | VIDEO DISPLAY METHOD - A video display method which allows a visible light communication signal to be appropriately transmitted includes: Step SL | 07-03-2014 |
20140186026 | INFORMATION COMMUNICATION METHOD - 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. | 07-03-2014 |
20140186047 | INFORMATION COMMUNICATION METHOD - 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. | 07-03-2014 |
20140186048 | INFORMATION COMMUNICATION METHOD - 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. | 07-03-2014 |
20140186049 | INFORMATION COMMUNICATION METHOD - 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. | 07-03-2014 |
20140186050 | INFORMATION COMMUNICATION METHOD - 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. | 07-03-2014 |
20140186052 | INFORMATION COMMUNICATION METHOD - 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. | 07-03-2014 |
20140186055 | INFORMATION COMMUNICATION METHOD - 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. | 07-03-2014 |
20140192185 | INFORMATION COMMUNICATION DEVICE - 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. | 07-10-2014 |
20140192226 | INFORMATION COMMUNICATION DEVICE - 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. | 07-10-2014 |
20140204129 | DISPLAY METHOD - A display method capable of reducing the probability of communication error without causing significant deterioration of picture quality includes: specifying, as a specified light emission period, a light emission period in which light emission is performed for greater than or equal to a time required for transmitting a block included in a visible light communication signal, out of one or more light emission periods in which light emission is performed for displaying an image included in a video signal; and transmitting the block of the visible light communication signal by luminance changing in the specified light emission period. | 07-24-2014 |
20140205136 | VISIBLE LIGHT COMMUNICATION SIGNAL DISPLAY METHOD AND APPARATUS - A visible light communication signal display method of displaying (i) an image represented by video signals and (ii) an image obtained by encoding visible light communication signals includes: encoding at least part of the visible light communication signals to generate an encoded image; generating a plurality of sub-images which correspond to respective partial images obtained by dividing the encoded image and each of which (i) includes a corresponding one of the partial images and (ii) except for the corresponding partial image, is an image having a substantially uniform luminance value lower than or equal to a predetermined luminance value; and displaying, in a video display period, the image represented by the video signals, and displaying the sub-images in time series in a communication period different from the video display period. | 07-24-2014 |
20140207517 | INFORMATION COMMUNICATION METHOD - 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. | 07-24-2014 |
20140232896 | INFORMATION COMMUNICATION METHOD OF OBTAINING INFORMATION FROM A SUBJECT BY DEMODULATING DATA SPECIFIED BY A PATTERN OF A BRIGHT LINE INCLUDED IN AN OBTAINED IMAGE - 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. | 08-21-2014 |
20140232903 | INFORMATION COMMUNICATION METHOD - 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. | 08-21-2014 |
20140286644 | INFORMATION COMMUNICATION METHOD - 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. | 09-25-2014 |
20140290138 | INFORMATION COMMUNICATION METHOD - An information communication method that enables communication between various devices is an information communication method of obtaining information from a subject, and includes: setting an exposure time of an image sensor; obtaining a bright line image which is an image including a plurality of bright lines, by capturing the subject changing in luminance by the image sensor with the set exposure time; obtaining transmission information by demodulating data specified by a pattern of the plurality of bright lines included in the obtained bright line image; and causing an opening and closing drive device of a door to open the door, by transmitting a control signal after the transmission information is obtained. | 10-02-2014 |
20140294397 | INFORMATION COMMUNICATION METHOD - An information communication device which transmits a signal using a change in luminance includes a determiner that determines a pattern of the change in luminance by modulating a signal to be transmitted and a transmitter that transmits the signal by causing a display to change luminance according to the determined pattern. When the display is adjacent to an other display and each of the display and the other display transmit a signal by changing luminance, the transmitter is configured to cause the display to change luminance in an area of the display other than a non-transmission area that is near the other display, without causing the display to change luminance in the non-transmission area. | 10-02-2014 |
20140294398 | INFORMATION COMMUNICATION METHOD - An information communication device includes an exposure time setter that sets an exposure time of an image sensor so that a bright line corresponding to an exposure line included in the image sensor appears according to a change in luminance of the light emitter. A first information obtainer obtains first information by demodulating data specified by a pattern of the bright line included in the obtained bright line image and a second information obtainer obtains second information by capturing a plurality of light emitting elements, each of which emits light with one of two different luminance values, and demodulating data specified by a light and dark sequence of luminance along a direction substantially parallel to the exposure line. | 10-02-2014 |
20140307155 | INFORMATION COMMUNICATION METHOD - An information communication method selects between a visible light communication mode in which information is obtained from a subject using an image sensor having a plurality of exposure lines and a normal imaging mode. The information communication method includes obtaining first image data by image capture with a first exposure time in the normal imaging mode by sequentially starting exposure of each of the exposure lines of the image sensor at different times. Second image data is obtained by image capture with a second exposure time in the visible light communication mode. The information is obtained by demodulating data specified by a direction in a pattern of a bright line corresponding to the exposure lines, the second exposure time being shorter than the first exposure time. The second image data is obtained by capturing light emitted from the subject and spread by an optical system. | 10-16-2014 |
20140307156 | INFORMATION COMMUNICATION METHOD - An information communication method selects between a visible light communication mode in which information is obtained from a subject using an image sensor having a plurality of exposure lines and a normal imaging mode. The method includes obtaining first image data by image capture with a first exposure time in the normal imaging mode. When an image is presented that prompts a user of a terminal device including the image sensor to move the terminal device to enable the information to be obtained, second image data is obtained by image capture with a second exposure time, shorter than the first exposure time, in the visible light communication mode. The information is obtained by demodulating data specified by a direction in a pattern of a bright line appearing in the second image data and corresponding to the exposure lines that is substantially perpendicular to the exposure lines. | 10-16-2014 |
20140307157 | INFORMATION COMMUNICATION METHOD - An information communication method selects between a visible light communication mode, in which information is obtained from a subject using an image sensor having a plurality of exposure lines, and a normal imaging mode. The information communication method includes obtaining first image data by image capture with a first exposure time in the normal imaging mode and obtaining second image data by image capture with a second exposure time, shorter than the first exposure time, in the visible light communication mode. When the second image data is obtained by capturing a plurality of subjects reflected on a reflection surface, the information is obtained by separating a bright line corresponding to each subject from bright lines included in the second image data according to a strength of the bright line and demodulating, for each subject, the data specified by the pattern of the bright line. | 10-16-2014 |
20140376922 | INFORMATION COMMUNICATION METHOD - An information communication method that obtains information from a subject includes setting an exposure time of an image sensor that, in an image obtained, a bright line corresponding to each of a plurality of exposure lines included in the image sensor appears, according to a change in luminance of the subject. A bright line image, in which the bright line is shown along with surroundings of the subject, is obtained by starting exposure of each of the exposure lines included in the image sensor at a sequentially different time. The bright line image is displayed and information is obtained when, in the bright line image, a part corresponding to the bright line is tapped, by demodulating data specified by a direction generally perpendicular to the exposure line in a pattern of the bright line corresponding to the tapped part. | 12-25-2014 |
20150050027 | INFORMATION COMMUNICATION METHOD - 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. | 02-19-2015 |
20150070522 | INFORMATION COMMUNICATION METHOD - An information communication method for obtaining information from a subject includes transmitting position information indicating a position of an image sensor used to capture the subject, and receiving an ID list that is associated with the position indicated by the position information. The method also includes setting an exposure time of the image sensor so that a bright line corresponding to an exposure line included in the image sensor appears according to a change in luminance of the subject. The method further includes 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, obtaining the 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. | 03-12-2015 |