Personal digital assistant and stereo reproduction method
First Claim
1. A personal digital assistant provided with a display section housing having a display means and an operation section housing having a key input means connected by a rotatable hinge means, wherein the display section housing rotates relative to the operation section housing with the rotatable hinge means providing a central rotational axis, comprising:
- a plurality of speakers arranged surrounding the display means;
a detection means for detecting an arbitrary position of the display section housing;
a speaker identifier means for identifying a speaker situated on a leftmost side relative to a display image displayed on the display means and a speaker situated on a rightmost side relative to the display image displayed on the display means among said plural speakers based on the position of the display section housing detected by the detection means, the leftmost and rightmost sides being identified on a two-dimensional plane including the arbitrary position of the display section; and
a sound reproduction control means for reproducing stereo sound with the speaker situated on the leftmost side and the speaker situated on the rightmost side identified by the speaker identifier means;
wherein the speaker identifier means identifies the speaker situated on the leftmost side and the speaker situated on the rightmost side based on a current position of the display section and an immediately previous position of the display section detected by the detection means.
4 Assignments
0 Petitions
Accused Products
Abstract
An operation section housing and a display section housing are connected by a rotatable hinge having a structure in which the display section housing rotates with the rotatable hinge serving as the central rotational axis. The display section housing has three built-in speakers in predetermined positions of a display. A personal digital assistant detects the angle of the rotatable hinge and identifies the speaker located in the leftmost side and the speaker located in the rightmost side relative to an upright display image displayed on the display. Then, the left audio is output from the left side of the upright display image and the right audio is output from the right side of the upright display image.
131 Citations
17 Claims
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1. A personal digital assistant provided with a display section housing having a display means and an operation section housing having a key input means connected by a rotatable hinge means, wherein the display section housing rotates relative to the operation section housing with the rotatable hinge means providing a central rotational axis, comprising:
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a plurality of speakers arranged surrounding the display means; a detection means for detecting an arbitrary position of the display section housing; a speaker identifier means for identifying a speaker situated on a leftmost side relative to a display image displayed on the display means and a speaker situated on a rightmost side relative to the display image displayed on the display means among said plural speakers based on the position of the display section housing detected by the detection means, the leftmost and rightmost sides being identified on a two-dimensional plane including the arbitrary position of the display section; and a sound reproduction control means for reproducing stereo sound with the speaker situated on the leftmost side and the speaker situated on the rightmost side identified by the speaker identifier means; wherein the speaker identifier means identifies the speaker situated on the leftmost side and the speaker situated on the rightmost side based on a current position of the display section and an immediately previous position of the display section detected by the detection means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A stereo reproduction method in a personal digital assistant provided with a display section housing having a display means and an operation section housing having a key input means connected by a rotatable hinge means, wherein the display section housing rotates relative to the operation section housing with the rotatable hinge means providing a central rotational axis, the method comprising the steps of:
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detecting an arbitrary position of the display section housing; identifying a speaker situated on a leftmost side relative to a display image displayed on the display means and a speaker situated on the rightmost side relative to a display image displayed on the display means from among a plurality of speakers arranged surrounding the display means based on a current position of the display section and an immediately previous detected position of the display section, the leftmost and rightmost sides being identified on a two-dimensional plane including the arbitrary position of the display section; and reproducing stereo sound with the speaker situated on the leftmost side and the speaker situated on the rightmost side. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A program documentation recording medium for storing a stereo reproduction computer program on a processor, which when used on a personal digital assistant provided with a display section housing having a display means and an operation section housing having a key input means connected by a rotatable hinge means causes stereo reproduction of stereo sound, wherein the display section housing rotates relative to the operation section housing with the rotatable hinge means providing a central rotational axis, the stereo reproduction computer program comprising:
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program code for detecting an arbitrary position of the display section housing; program code for identifying a speaker situated on a leftmost side relative to a display image displayed on the display means and a speaker situated on a rightmost side relative to the display image displayed on the display means from among a plurality of speakers arranged surrounding the display means based on a current position of the display section and an immediately previous detected position of the display section, the leftmost and rightmost sides being identified on a two-dimensional plane including the arbitrary position of the display section; and program code for reproducing the stereo sound with the speaker situated on the leftmost side and the speaker situated on the rightmost side. - View Dependent Claims (16, 17)
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Specification