Portable information terminal apparatus having image processing function
First Claim
1. A portable information terminal apparatus having an image processing function, comprising:
- an optical system for forming an optical image of a surface of a subject;
a two-dimensional photoelectric conversion element for performing photoelectric conversion of the formed optical image into a two-dimensional image signal;
a signal conversion means for converting said two-dimensional image signal of said photoelectric conversion element into a digital image signal;
a memory means for temporarily storing said digital image signal;
a subject position detection means including a position sensor for transmitting an ultrasonic wave signal to the subject and for receiving a reflected signal reflected therefrom, said position sensor continuously measuring a distance between the subject and said optical system, the subject position detection means having stored therein a predetermined value corresponding to an image-formation distance of said optical system, said subject position detection means generating a detection signal when the distance measured by said position sensor corresponds to said predetermined value;
an image inputting means including an image signal fetching means for receiving said detection signal, said image signal fetching means supplying instantaneously said digital image signal to said memory means upon receipt of said detection signal, said digital image signal being held in said memory means when said subject position detection means detects that the subject to be picked up as an image is located at a distance from said optical system corresponding to said predetermined value; and
output means for reading out the digital image signal stored in said memory means, said output means editing the read-out digital image signal together with other information in a predetermined format, and outputting the result of said editing.
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Abstract
A portable terminal apparatus provided with an image processing function permitting automatic image-pickup without manual focusing which includes an optical system for forming an optical image of a surface of a subject, a two-dimensional photoelectric conversion element for performing photoelectric conversion onto the formed optical image, a signal conversion device for converting an output signal of the photoelectric conversion element into a digital signal, a memory device for temporarily storing the two-dimensional image signal digitized by the signal conversion device, a subject position detecting device storing the optimum image-formation distance of the optical system in advance and for detecting the distance between the subject and the optical system, and an image inputting device including an electronic shutter device which supplies a video signal on the two-dimensional photoelectric conversion element to the memory device to hold the video signal in the memory device instantaneously when the subject position detecting device detects that the subject is located at an image-forming distance.
94 Citations
9 Claims
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1. A portable information terminal apparatus having an image processing function, comprising:
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an optical system for forming an optical image of a surface of a subject; a two-dimensional photoelectric conversion element for performing photoelectric conversion of the formed optical image into a two-dimensional image signal; a signal conversion means for converting said two-dimensional image signal of said photoelectric conversion element into a digital image signal; a memory means for temporarily storing said digital image signal; a subject position detection means including a position sensor for transmitting an ultrasonic wave signal to the subject and for receiving a reflected signal reflected therefrom, said position sensor continuously measuring a distance between the subject and said optical system, the subject position detection means having stored therein a predetermined value corresponding to an image-formation distance of said optical system, said subject position detection means generating a detection signal when the distance measured by said position sensor corresponds to said predetermined value; an image inputting means including an image signal fetching means for receiving said detection signal, said image signal fetching means supplying instantaneously said digital image signal to said memory means upon receipt of said detection signal, said digital image signal being held in said memory means when said subject position detection means detects that the subject to be picked up as an image is located at a distance from said optical system corresponding to said predetermined value; and output means for reading out the digital image signal stored in said memory means, said output means editing the read-out digital image signal together with other information in a predetermined format, and outputting the result of said editing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A portable information terminal apparatus having an image processing function, comprising:
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an optical system for forming an optical image of a surface of a subject; a photoelectric conversion element for performing photoelectric conversion of the formed optical image into a converted image signal; a memory means for temporarily storing said converted image signal; a subject position detecting means having a predetermined value corresponding to an image-formation distance of said optical system stored therein in advance, said detecting means detecting a distance between the subject and said optical system; an image inputting means including an image signal fetching means which supplies said converted image signal to said memory means to hold the converted image signal in said memory means instantaneously when said subject position detecting means detects that the subject to be picked up as an image is located at a distance from said optical system of said predetermined value; a barcode recognition means for extracting a barcode pattern region from said converted image signal temporarily stored in said memory region and for reading out contents of the extracted barcode pattern region; and output means for reading out the converted image signal stored in said memory means, editing the read-out converted image signal together with other information including the contents of the extracted barcode pattern region read out by said barcode recognition means in a predetermined format, and outputting a result of said editing.
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Specification