Information exchange device

1. An information exchange device comprising:

a human body communication unit which applies information flowing via a first human body to a second human body and detects information flowing via the first human body;

an information transmission unit which transmits information via the human body communication unit;

an identification unit which identifies another device which can transmit information from the information transmission unit;

a detection unit which detects a contact state with the first and second human bodies; and

a transmission control unit which starts transmission of information according to identification by the identification unit and a detection by the detection unit,

wherein the identification unit includes an enrollment unit which enrolls another device for information transmission by the information transmission unit, and a sensing unit which senses another device, and identifies that the other device sensed by the sensing unit is capable of information exchange by the transmission unit if the other device matches the enrollment of the enrollment unit, and

wherein the transmission control unit does not start the information transmission to the other device even if the other device is enrolled in the enrollment unit, if a term during which the sensing unit has not sensed the enrolled device continues over a predetermined time and even if a next contact state with another human body is detected with respect to the enrolled device.

2. An information exchange device according to claim 1 , wherein the information exchange device comprises a mobile phone.

3. An information exchange device according to claim 1 , wherein the information transmitted by the information transmission unit is e-mail information, and the human body communication unit detects the information flowing via human bodies with hands in contact with one another.

4. An information exchange device according to claim 1 , wherein the information transmitted by the information transmission unit is contents information, and the human body communication unit detects the information flowing via human bodies with hands in contact with one another.

5. An information exchange device according to claim 1 , wherein the information transmitted by the information transmission unit is business card information, and the human body communication unit detects the information flowing via human bodies with hands in contact with one another.

6. An information exchange device according to claim 5 , further comprising an information reception unit which receives business card information via the human body communication unit, a storage unit for the business card information, and a comparing unit which compares the business card information received by the information reception unit with the business card information stored in the storage unit.

7. An information exchange device comprising:

a human body communication unit which applies information flowing via a first human body to a second human body and detects information flowing via the first human body;

an information transmission unit which transmits information via the human body communication unit;

an identification unit which identifies another device which can transmit information from the information transmission unit;

a detection unit which detects a contact state with the first and second human bodies; and

a transmission control unit which starts transmission of information according to identification by the identification unit and a detection by the detection unit, and

wherein the identification unit includes an enrollment unit which enrolls another device for information transmission by the information transmission unit, and a sensing unit which senses another device, and identifies that the other device sensed by the sensing unit is capable of information exchange by the transmission unit if the other device matches the enrollment of the enrollment unit,

wherein the information transmission unit includes a modulation unit which modulates the information to a narrow-band transmission signal, an adjustment unit which adjusts a band of the transmission signal modulated by the modulation unit in relationship with an opponent enrolled in the enrollment unit, and a storage unit which stores the band of the transmission signal adjusted by the adjustment unit.

8. An information exchange device comprising:

a display unit which can display received business card information;

a function operation unit for controlling the display unit to perform a display concerning a function other than the business card information display;

an automatic off control unit which automatically turns off a display on the display unit if the function operation unit is not operated for a predetermined time; and

a display control unit which disables a function of the automatic off control unit if the display unit starts the layout display of seating arrangement in a meeting room of the persons from which the business card information is received, so that the layout display of seating arrangement is continued even if an operation of the function operation unit is not performed for a predetermined time.

9. An information exchange device according to claim 8 , further comprising a storage unit which automatically stores a reception order of business card information of a plurality of persons at the same meeting based on the information reception unit.