Television apparatus

Claim 2

An apparatus according to Claim 1, wherein said picture projection means includes distance adjustment mechanism which adjusts the distance to the projection screen on which the picture is projected, corresponding to the image signal received as input.

Claim 3

An apparatus according to Claim 2, wherein said picture quality adjustment means is so arranged that it adjust the picture quality of the image signal received as input at said picture image projection means, according to the distance to the projection screen, being adjusted in said distance adjustment mechanism.

Claim 4

An apparatus according to Claim 1, wherein said picture image projection means includes magnification change mechanism which changes arbitrarily the size of picture corresponding to the input of image signal to project the image.

Claim 5

An apparatus according to Claim 4, wherein said picture quality adjustment means is so arranged that it adjusts the picture quality of the image signal received as input at the above picture image projection system, according to the size of picture adjusted by said magnification change mechanism.

Claim 6

An apparatus according to Claim 1, wherein said picture image projection means includes the detection means for detecting the brightness of the projection screen on which the picture image corresponding to the input of image signal is projected.

Claim 7

An apparatus according to Claim 6, wherein said picture quality adjustment means is so arranged that it adjusts the picture quality of image signal received as input at said picture image projection means according to the brightness of projection screen as detected by said detection means.

Claim 8

A television apparatus which displays a picture corresponding to the television signal, comprising: (a) picture projection means for receiving the input of image signal and projecting a picture image corresponding to the input of image signal; and (b) picture quality adjustment means for adjusting the quality of image signal which received by said picture projection means as input, according to the distance to the projection screen on which the picture is projected by said picture projection means.

Claim 9

An apparatus according to Claim 8, wherein said picture quality adjustment means including: (a) distance measuring means for measuring the distance to the projection screen on which the picture image is projected by said picture projection means, and for generating a distance information signal corresponding to the measured distance; and (b) outline emphasis processing means for making the processing to emphasize the outline section of the picture to the image signal received as input to said picture projection means in accordance with the distance information signal to be generated with the above distance measuring means to output the processed image signal.

Claim 10

An apparatus according to Claim 8, wherein said picture quality adjustment means is so arranged that it arbitrarily adjusts the picture quality of image signal to be received as input at said picture projection means, irrespective of the distance to the projection screen on which the picture image is projected with said picture projection means.

Claim 11

An apparatus according to Claim 8, wherein said picture projection means including: (a) picture formation means for forming a picture corresponding to the above image signal received as input; and (b) optical projection means for projecting the picture formed with said picture formations means at the projection screen.

Claim 12

An apparatus according to Claim 11, wherein said picture quality adjustment means including: (a) distance measuring means for measuring the distance to the projection screen on which the picture is projected with said picture projection means, for controlling the focusing action in said optical projection means according to the measured distance, and for generating a distance information signal corresponding to the measured distance; and (b) outline emphasis processing means for undertaking the processing to emphasize the outline part of the picture image to the image signal received as input at said picture projection means, according to the distance information signal to be generated at said distance measuring means to output the processed image signal.

Claim 13

A television apparatus which displays the picture image which corresponds to the television signal, comprising: (a) picture projection means for receiving an input of image signal and for projecting the picture an arbitrary size corresponding to the image signal received as the input; and (b) picture quality adjustment means for adjusting the picture quality of image signal to be received as the input at said picture projection means. According to the size of picture to be projected by said picture projection means.

Claim 14

An apparatus according to Claim 13, wherein said picture quality adjustment means including: (a) measuring means for measuring the size of picture to be projected by the said picture projection means and for generating the information signal in accordance with the measured size of picture; and (b) outline emphasis processing means for making the processing to emphasize the outline part of the picture to the image signal to be received as the input at said picture projection means, in accordance with the information signal to be projected by said image projection means to output the processed image signal.

Claim 15

An apparatus according to Claim 13, wherein picture quality adjustment means is so arranged that it arbitrarily adjusts the picture quality of image signal to be received as the input at said picture projection means, irrespective of the size of picture to be projected by said picture projection means.

Claim 16

An apparatus according to Claim 13, wherein picture projection means including: (a) picture formation means for forming a picture corresponding to the said image signal input; and (b) optical projection means for projecting the picture formed at said image formation means to an arbitrary size on the projection screen.

Claim 17

An apparatus according to Claim 16, wherein picture quality adjustment means including: (a) distance measuring means for measuring the distances to the projection screen on which the picture is projected by said picture projection means, for controlling the focusing action of projected picture at said optical projection means in accordance with the measured distance, and for generating the distance information signal in accordance with the measured distance; and (b) magnification change ratio detection means for detecting a magnification change ratio in said optical projection means and for generating the magnification change ratio information signal in reference to the detected magnification change ratio; and (c) outline emphasis processing means for operating the size of picture to be projected on the screen by said picture projection means by use of the distance information signal to be generated by said distance measuring means and the magnification change ratio information signal to be generated by said magnification changing ratio detection means, and for making the processing to emphasize the outline part of picture to the image signal to be received as input at said picture projection means according to the result of the operation to output the processed image signal.

Claim 18

A television apparatus which displays a picture corresponding to a television signal, comprising: (a) picture projection means for receiving an image signal as an input and for projecting a picture corresponding to image signal input; and (b) picture quality adjustment means for adjusting the picture quality of the image signal to be received as the input at said picture projection means according to the brightness of the projection screen on which the picture is projected by said picture projection means.

Claim 19

An apparatus according to Claim 18, wherein picture quality adjustment means including: (a) luminance detection means for detecting the brightness of the projection screen on which the picture is projected by said picture projection means and for generating a luminance information signal corresponding to the detected brightness; and (b) contrast adjusting processing means for making the contrast adjusting processing of the picture to the image signal to be received as the input at said picture projection means, in accordance with the luminance information signal to be generated at said luminance detection means to output the processed image signal.

Claim 20

An apparatus according to Claim 18, wherein said picture quality adjustment means is so arranged that the picture quality of the image signal to be received as the input at said picture projection means can be freely adjusted, irrespective of the brightness of the projection screen on which the picture is projected by said picture projection means.

Claim 21

An apparatus according to Claim 18, further comprising the projection operation suspension instruction means for instructing an interruption of the projection operation of picture in said picture projection means, and wherein during the time when the picture projection operation interruption instruction is given by the said suspension instruction means, the said picture projection means interrupts the projection operation of picture, and wherein the said picture quality adjustment means is so arranged that it conducts the adjusting processing operation to the image signal to be supplied to the said picture projection means.

Claim 22

An apparatus according to Claim 21, wherein said projection operation suspension instruction means is so arranged that it instructs the interruption of projection operation of picture in said picture projection means for the predetermined period after said television apparatus is put into operation.

Claim 23

An apparatus according to Claim 18, further comprising a picture quality adjusting operation start instruction means for instructing the start of picture quality adjusting operation of image signal received as the input to said picture projection means in the said picture quality adjustment means, wherein said picture projection means is so arranged that it suspends the projection operation of picture during the period when the start instruction is given for picture quality adjusting operation of image signal in said picture quality adjusting operation start instruction means, and wherein said picture quality adjustment means carries out the adjusting processing operation of picture quality of image signal to be supplied to said picture projection means.

Claim 24

An apparatus according to Claim 23, wherein said picture quality adjusting operation start instruction means is so arranged that it instructs the start of the picture quality adjustment operation of the image signal in said picture quality adjustment means during a predetermined period after said television apparatus is put into operation.

Claim 25

An apparatus according to Claim 18, wherein said picture projection means including: (a) picture image formation means for forming a picture image corresponding to said image signal received as the input; and (b) optical projection means for projecting the picture, formed by said picture image formation means, at the projection screen.

Claim 26

An apparatus according to Claim 25, wherein said picture quality adjustment means including: (a) contrast control signal generation means for detecting the brightness of the projection screen on which the picture image is projected by said picture projection means and for generating a contrast control signal for the adjustment of contrast of picture to be formed by said picture formation means according to the detected brightness; and (b) contrast adjusting processing means for carrying out a picture contrast adjusting processing to the image signal received as the input at said picture projection means according to the contrast control signal to be generated from said contrast control signal generation means, and for outputting the processed image signal.

Claim 27

An apparatus according to Claim 25, wherein said picture quality adjustment means including: (a) luminance detection means for detecting the brightness of the projection screen on which the picture is projected by the said picture projection means and for generating the luminance detection signal in accordance with the detected brightness; and (b) distance measuring means for measuring the distance to the projection screen on which the picture is projected by said picture projection means, for controlling the focusing operation of the projected picture at said optical projection means according to the measured distance and for generating the distance information signal in response to the measured distance; and (c) magnification change ratio detection means for detecting the magnification change ratio of the projection picture in said optical projection means and for generating the magnification change ratio information signal according to the detected magnification change ratio information signal; and (d) operation processing means for operating the size of the picture to be projected on the projection screen by said picture projection means by use of the distance information signal to be generated by said distance measuring means and the magnification change ratio information signal to be generated by said magnification change ratio detection means, for emphasizing the outline part of the picture in the image signal to be received as the input at said picture formation means according to the size of picture operated by the operation, and the brightness on the projection screen on which the picture is projected, as shown by the luminance detection signal to be generated by said luminance detection means, and for generating the picture quality correction control signal for adjustment of contrast of picture; and (e) picture quality correction processing means for emphasizing the outline part of the picture in the image signal which is received as the input at said picture projection means in accordance with the picture quality correction control signal to be generated by said operation processing means and for carrying out the adjusting processing for the contrast of the picture to output the processed image signal.

Claim 28

Projection television apparatus comprising means to perform automatic picture quality adjustment in accordance with the conditions of operation of the apparatus.

Claim 29

Apparatus according to claim 29 in which the automatic picture quality adjustment means operates in accordance with at least one of the projection distance, the projected picture size and the background light level for operation of the apparatus.

Claim 30

Apparatus according to claim 29 in which the automatic picture quality adjustment means adjusts at least one of the projection focus, outline correction or enhancement amount, and brightness contrast of the projected image.