Abstract: An imaging device is provided in a vehicular display device mounted in a vehicle to display information and photographs a passenger of the vehicle. The imaging device includes an imaging unit having a plurality of viewpoint positions provided at vertically different locations in the vehicular display device. The imaging unit is configured to photograph the passenger from a plurality of viewpoints at the plurality of viewpoint positions.

Abstract: An imaging device is provided in a vehicular display device mounted in a vehicle to display information and photographs a passenger of the vehicle. The imaging device includes an imaging unit having a plurality of viewpoint positions provided at vertically different locations in the vehicular display device. The imaging unit is configured to photograph the passenger from a plurality of viewpoints at the plurality of viewpoint positions.

Abstract: In a personal digital assistant (PDA), a communication section receives a data signal from a communication network in a packet-switched communication (PSC) mode or a circuit-switched communication (CSC) mode. In the PDA, a data amount acquisition block acquires information on the amount of the remaining data of the data signal. A PSC charge estimator block calculates an estimated PSC charge assuming that the remaining data of the amount indicated by the acquired information is received in the PSC mode. A CSC charge estimator block calculates an estimated CSC charge assuming that the remaining data is received in the CSC mode. The estimated PSC charge and the estimated CSC charge are compared, and the communication section is set in a communication mode which is selected from the PSC mode and the CSC mode based on the result of the comparison.