Television apparatus, display method of television apparatus and picture plane control apparatus, and method

Claim 2

A television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized in that said television apparatus has a signal processing means for magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation, said magnified or reduced input signal is displayed in said second picture plane, and said signal processing means comprises: first interpolating means for performing an interpolation when a reduced image is displayed; a memory in which the image from said first interpolating means is written; control means for designating a portion of the image to be written into said memory on the basis of a write start position and a writing range and reading out the portion of the image written in said memory on the basis of a read start position and a reading range; and second interpolating means for performing an interpolation of the portion of said image read out from said memory when a magnified image is displayed.

Claim 3

A television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized in that said television apparatus has a signal processing means for magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation, said magnified or reduced input signal is displayed in said second picture plane, said second picture plane is displayed in said first picture plane, and said signal processing means comprises: first interpolating means for performing an interpolation when a reduced image is displayed; a memory in which the image from said first interpolating means is written; control means for designating a portion of the image to be written into said memory on the basis of a write start position and a writing range and reading out the portion of the image written in said memory on the basis of a read start position and a reading range; and second interpolating means for performing an interpolation of the portion of said image read out from said memory when a magnified image is displayed.

Claim 4

A television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized in that said television apparatus has a signal processing means for magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation, said magnified or reduced input signal is displayed in said second picture plane, said second picture plane is displayed in said first picture plane, and said signal processing means comprises: first interpolating means for performing an interpolation when a reduced image is displayed; a memory in which the image from said first interpolating means is written; control means for designating a portion of the image to be written into said memory on the basis of a write start position and a writing range and reading out the portion of the image written in said memory on the basis of a read start position and a reading range; and second interpolating means for performing an interpolation of the portion of said image read out from said memory when a magnified image is displayed.

Claim 5

A television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized in that said television apparatus has a signal processing means for magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation, said magnified or reduced input signal is displayed in said second picture plane, said second picture plane is displayed at a position adjacent to said first picture plane, and said signal processing means comprises: first interpolating means for performing an interpolation when a reduced image is displayed; a memory in which the image from said first interpolating means is written; control means for designating a portion of the image to be written into said memory on the basis of a write start position and a writing range and reading out the portion of the image written in said memory on the basis of a read start position and a reading range; and second interpolating means for performing an interpolation of the portion of said image read out from said memory when a magnified image is displayed.

Claim 6

A television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized in that said television apparatus has a signal processing means for magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation, said magnified or reduced input signal is displayed in said second picture plane, said second picture plane is displayed at a position adjacent to said first picture plane, and said signal processing means comprises: first interpolating means for performing an interpolation when a reduced image is displayed; a memory in which the image from said first interpolating means is written; control means for designating a portion of the image to be written into said memory on the basis of a write start position and a writing range and reading out the portion of the image written in said memory on the basis of a read start position and a reading range; and second interpolating means for performing an interpolation of the portion of said image read out from said memory when a magnified image is displayed.

Claim 7

A television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized in that said television apparatus has a signal processing means for magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation, said magnified or reduced input signal is displayed in said second picture plane, said signal processing means comprises: first interpolating means for performing an interpolation when a reduced image is displayed; a memory in which the image from said first interpolating means is written; control means for designating a portion of the image to be written into said memory on the basis of a write start position and a writing range and reading out the portion of the image written in said memory on the basis of a read start position and a reading range; and second interpolating means for performing an interpolation of the portion of said image read out from said memory when a magnified image is displayed, wherein a letter box signal is detected and an image obtained by removing upper and lower black edges of said detected letter box signal is di splayed in said first and/or said picture plane.

Claim 8

A television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized in that said television apparatus has a signal processing means for magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation, said magnified or reduced input signal is displayed in said second picture plane, said signal processing means comprises: first interpolating means for performing an interpolation when a reduced image is displayed; a memory in which the image from said first interpolating means is written; control means for designating a portion of the image to be written into said memory on the basis of a write start position and a writing range and reading out the portion of the image written in said memory on the basis of a read start position and a reading range; and second interpolating means for performing an interpolation of the portion of said image read out from said memory when a magnified image is displayed, wherein a letter box signal is detected and an image obtained by removing upper and lower black edges of said detected letter box signal is di splayed in said first and/or said picture plane.

Claim 9

A display method of a television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized by comprising the steps of: magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation; and displaying said magnified or reduced input signal onto said second picture plane, said magnification or said reduction is discriminated from a writing range and a reading range and when said reduction is determined, an interpolation in a horizontal direction and a vertical direction is performed to said input signal prior to writing into a memory said interpolated input signal is decimated on a pixel unit basis or on a line unit basis, a signal according to write start position or said writing range is written into said memory, and a read start position and said signal written in said memory are read out in accordance with said reading range and displayed on said second picture plane.

Claim 10

A display method of a television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized by comprising the steps of: magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation; and displaying said magnified or reduced input signal onto said second picture plane, said magnification or said reduction is discriminated from a writing range and a reading range and when said reduction is determined, an interpolation in a horizontal direction and a vertical direction is performed to said input signal prior to writing into a memory said interpolated input signal is decimated on a pixel unit basis or on a line unit basis, a signal according to write start position or said writing range is written into said memory, and a read start position and said signal written in said memory are read out in accordance with said reading range and displayed on said second picture plane.

Claim 11

A display method of a television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized by comprising the steps of: magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation; and displaying said magnified or reduced input signal onto said second picture plane, said magnification or said reduction is discriminated from a writing range and a reading range, wherein when said reduction is determined, an interpolation in a horizontal direction and a vertical direction is performed to said input signal prior to writing into a memory said interpolated input signal is decimated on a pixel unit basis or on a line unit basis, a signal according to write start position or said writing range is written into said memory, and a read start position and said signal written in said memory are read out in accordance with said reading range and displayed on said second picture plane, and wherein when said magnification is determined, the signal written in a memory is read out in accordance with a read start position and said reading range, and an interpolation in a horizontal direction and a vertical direction is performed to said read-out signal and displayed on said second picture plane.

Claim 12

A display method of a television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized by comprising the steps of: magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation; and displaying said magnified or reduced input signal onto said second picture plane, said magnification or said reduction is discriminated from a writing range and a reading range, wherein when said reduction is determined, an interpolation in a horizontal direction and a vertical direction is performed to said input signal prior to writing into a memory said interpolated input signal is decimated on a pixel unit basis or on a line unit basis, a signal according to write start position or said writing range is written into said memory, and a read start position and said signal written in said memory are read out in accordance with said reading range and displayed on said second picture plane, and wherein when said magnification is determined, the signal written in a memory is read out in accordance with a read start position and said reading range, and an interpolation in a horizontal direction and a vertical direction is performed to said read-out signal and displayed on said second picture plane.

Claim 13

A display method of a television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized by comprising the steps of: magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation; and displaying said magnified or reduced input signal onto said second picture plane, said picture plane is displayed in said first picture plane, and said magnification or said reduction is discriminated from a writing range and a reading range and when said reduction is determined, an interpolation in a horizontal direction and a vertical direction is performed to said input signal prior to writing into a memory said interpolated input signal is decimated on a pixel unit basis or on a line unit basis, a signal according to write start position or said writing range is written into said memory, and a read start position and said signal written in said memory are read out in accordance with said reading range and displayed on said second picture plane.

Claim 14

A display method of a television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized by comprising the steps of: magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation; and displaying said magnified or reduced input signal onto said second picture plane, said picture plane is displayed in said first picture plane, and said magnification or said reduction is discriminated from a writing range and a reading range and when said reduction is determined, an interpolation in a horizontal direction and a vertical direction is performed to said input signal prior to writing into a memory said interpolated input signal is decimated on a pixel unit basis or on a line unit basis, a signal according to write start position or said writing range is written into said memory, and a read start position and said signal written in said memory are read out in accordance with said reading range and displayed on said second picture plane.

Claim 15

A display method of a television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized by comprising the steps of: magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation; and displaying said magnified or reduced input signal onto said second picture plane, said picture plane is displayed at a position adjacent to said first picture plane, and said magnification or said reduction is discriminated from a writing range and a reading range and when said reduction is determined, an interpolation in a horizontal direction and a vertical direction is performed to said input signal prior to writing into a memory said interpolated input signal is decimated on a pixel unit basis or on a line unit basis, a signal according to write start position or said writing range is written into said memory, and a read start position and said signal written in said memory are read out in accordance with said reading range and displayed on said second picture plane.

Claim 16

A display method of a television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized by comprising the steps of: magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation; and displaying said magnified or reduced input signal onto said second picture plane, said picture plane is displayed at a position adjacent to said first picture plane, and said magnification or said reduction is discriminated from a writing range and a reading range and when said reduction is determined, an interpolation in a horizontal direction and a vertical direction is performed to said input signal prior to writing into a memory said interpolated input signal is decimated on a pixel unit basis or on a line unit basis, a signal according to write start position or said writing range is written into said memory, and a read start position and said signal written in said memory are read out in accordance with said reading range and displayed on said second picture plane.

Claim 17

A display method of a television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized by comprising the steps of: magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation; displaying said magnified or reduced input signal onto said second picture plane; and detecting a letter box signal and an image is obtained by removing an upper and lower black edges of said detected letter box signal is displayed in said first and/or second picture plane, said magnification or said reduction is discriminated from a writing range and a reading range and when said reduction is determined, an interpolation in a horizontal direction and a vertical direction is performed to said input signal prior to writing into a memory said interpolated input signal is decimated on a pixel unit basis or on a line unit basis, a signal according to write start position or said writing range is written into said memory, and a read start position and said signal written in said memory are read out in accordance with said reading range and displayed on said second picture plane.

Claim 18

A display method of a television apparatus for displaying a first picture plane and a second picture plane onto a same picture plane, characterized by comprising the steps of: magnifying or reducing an input signal of a program on a different channel or an input signal other than a signal displayed at present on said first picture plane by interpolation; displaying said magnified or reduced input signal onto said second picture plane; and detecting a letter box signal and an image is obtained by removing an upper and lower black edges of said detected letter box signal is displayed in said first and/or second picture plane, said magnification or said reduction is discriminated from a writing range and a reading range and when said reduction is determined, an interpolation in a horizontal direction and a vertical direction is performed to said input signal prior to writing into a memory said interpolated input signal is decimated on a pixel unit basis or on a line unit basis, a signal according to write start position or said writing range is written into said memory, and a read start position and said signal written in said memory are read out in accordance with said reading range and displayed on said second picture plane.

Claim 19

A picture plane control apparatus for allowing an input signal to be displayed on a picture plane, characterized by comprising: dividing means for discriminating a magnification or a reduction of the input signal, wherein said input signal is magnified or reduced by an interpolation means; a memory into/from which said input signal can be written and read out; write control means for allowing a desired area of said input signal to be written into said memory; and read control means for allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein when said reduction is determined from a writing range and a reading range by said dividing means, said write control means performs an interpolation in a horizontal direction and a vertical direction to said signal, decimates said interpolated signal on a pixel unit basis or on a line unit basis, and allows a signal according to a write start position and a writing range to be written into said memory.

Claim 20

A picture plane control apparatus for allowing an input signal to be displayed on a picture plane, characterized by comprising: dividing means for discriminating a magnification or a reduction of the input signal, wherein said input signal is magnified or reduced by an interpolation means; a memory into/from which said input signal can be written and read out; write control means for allowing a desired area of said input signal to be written into said memory; and read control means for allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein when said reduction is determined from a writing range and a reading range by said dividing means, said write control means performs an interpolation in a horizontal direction and a vertical direction to said signal, decimates said interpolated signal on a pixel unit basis or on a line unit basis, and allows a signal according to a write start position and a writing range to be written into said memory.

Claim 21

A picture plane control apparatus for allowing an input signal to be displayed on a picture plane, characterized by comprising: dividing means for discriminating a magnification or a reduction of the input signal, wherein said input signal is magnified or reduced by an interpolation means; a memory into/from which said input signal can be written and read out; write control means for allowing a desired area of said input signal to be written into said memory; and read control means for allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein when said magnification is determined from a writing range by said dividing means, said read control means reads out said signal written in said memory in accordance with a read start position and a reading range, and performs an interpolation in a horizontal direction and a vertical direction to said read-out signal.

Claim 22

A picture plane control apparatus for allowing an input signal to be displayed on a picture plane, characterized by comprising: dividing means for discriminating a magnification or a reduction of the input signal, wherein said input signal is magnified or reduced by an interpolation means; a memory into/from which said input signal can be written and read out; write control means for allowing a desired area of said input signal to be written into said memory; and read control means for allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein when said magnification is determined from a writing range by said dividing means, said read control means reads out said signal written in said memory in accordance with a read start position and a reading range, and performs an interpolation in a horizontal direction and a vertical direction to said read-out signal.

Claim 23

A picture plane control apparatus for allowing an input signal to be displayed on a picture plane, characterized by comprising: dividing means for discriminating a magnification or a reduction of the input signal, wherein said input signal is magnified or reduced by an interpolation means; a memory into/from which said input signal can be written and read out; write control means for allowing a desired area of said input signal to be written into said memory; and read control means for allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein said signal read out from said memory is displayed as a second picture plane at a desired position of a first picture plane, and wherein when said reduction is determined from a writing range and a reading range by said dividing means, said write control means performs an interpolation in a horizontal direction and a vertical direction to said signal, decimates said interpolated signal on a pixel unit basis or on a line unit basis, and allows a signal according to a write start position and a writing range to be written into said memory.

Claim 24

A picture plane control apparatus for allowing an input signal to be displayed on a picture plane, characterized by comprising: dividing means for discriminating a magnification or a reduction of the input signal, wherein said input signal is magnified or reduced by an interpolation means; a memory into/from which said input signal can be written and read out; write control means for allowing a desired area of said input signal to be written into said memory; and read control means for allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein said signal read out from said memory is displayed as a second picture plane at a desired position of a first picture plane, and wherein when said reduction is determined from a writing range and a reading range by said dividing means, said write control means performs an interpolation in a horizontal direction and a vertical direction to said signal, decimates said interpolated signal on a pixel unit basis or on a line unit basis, and allows a signal according to a write start position and a writing range to be written into said memory.

Claim 25

A picture plane control apparatus for allowing an input signal to be displayed on a picture plane, characterized by comprising: dividing means for discriminating a magnification or a reduction of the input signal, wherein said input signal is magnified or reduced by an interpolation means; a memory into/from which said input signal can be written and read out; write control means for allowing a desired area of said input signal to be written into said memory; and read control means for allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein said signal read out from said memory is displayed as a second picture plane at a desired position adjacent to a first picture plane, and wherein when said reduction is determined from a writing range and a reading range by said dividing means, said write control means performs an interpolation in a horizontal direction and a vertical direction to said signal, decimates said interpolated signal on a pixel unit basis or on a line unit basis, and allows a signal according to a write start position and a writing range to be written into said memory.

Claim 26

A picture plane control apparatus for allowing an input signal to be displayed on a picture plane, characterized by comprising: dividing means for discriminating a magnification or a reduction of the input signal, wherein said input signal is magnified or reduced by an interpolation means; a memory into/from which said input signal can be written and read out; write control means for allowing a desired area of said input signal to be written into said memory; and read control means for allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein said signal read out from said memory is displayed as a second picture plane at a desired position adjacent to a first picture plane, and wherein when said reduction is determined from a writing range and a reading range by said dividing means, said write control means performs an interpolation in a horizontal direction and a vertical direction to said signal, decimates said interpolated signal on a pixel unit basis or on a line unit basis, and allows a signal according to a write start position and a writing range to be written into said memory.

Claim 27

A picture plane control apparatus for allowing an input signal to be displayed on a picture plane, characterized by comprising: dividing means for discriminating a magnification or a reduction of the input signal, wherein said input signal is magnified or reduced by an interpolation means; a memory into/from which said input signal can be written and read out; write control means for allowing a desired area of said input signal to be written into said memory; read control means for allowing said input signal written in said memory to be displayed at a desired position of the picture plane; and a letter box signal is detected and an image obtained by removing upper and lower black edges of said detected letter box signal is displayed in a first and/or a second picture plane, wherein when said reduction is determined from a writing range and a reading range by said dividing means, said write control means performs an interpolation in a horizontal direction and a vertical direction to said signal, decimates said interpolated signal on a pixel unit basis or on a line unit basis, and allows a signal according to a write start position and a writing range to be written into said memory.

Claim 28

A picture plane control apparatus for allowing an input signal to be displayed on a picture plane, characterized by comprising: dividing means for discriminating a magnification or a reduction of the input signal, wherein said input signal is magnified or reduced by an interpolation means; a memory into/from which said input signal can be written and read out; write control means for allowing a desired area of said input signal to be written into said memory; read control means for allowing said input signal written in said memory to be displayed at a desired position of the picture plane; and a letter box signal is detected and an image obtained by removing upper and lower black edges of said detected letter box signal is displayed in a first and/or a second picture plane, wherein when said reduction is determined from a writing range and a reading range by said dividing means, said write control means performs an interpolation in a horizontal direction and a vertical direction to said signal, decimates said interpolated signal on a pixel unit basis or on a line unit basis, and allows a signal according to a write start position and a writing range to be written into said memory.

Claim 29

A picture plane control method of displaying an input signal onto a picture plane, characterized by comprising the steps of: discriminating a magnification or a reduction of the input signal by dividing means, wherein the input signal is magnified or reduced by an interpolation means; writing a desired area of said input signal into a memory; and allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein when said reduction is determined from a writing range and a reading range by said dividing means, an interpolation in a horizontal direction and a vertical direction is performed to said signal, said interpolated signal is decimated on a pixel unit basis or on a line unit basis, and the signal is written into said memory in accordance with a write start position and said writing range.

Claim 30

A picture plane control method of displaying an input signal onto a picture plane, characterized by comprising the steps of: discriminating a magnification or a reduction of the input signal by dividing means, wherein the input signal is magnified or reduced by an interpolation means; writing a desired area of said input signal into a memory; and allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein when said reduction is determined from a writing range and a reading range by said dividing means, an interpolation in a horizontal direction and a vertical direction is performed to said signal, said interpolated signal is decimated on a pixel unit basis or on a line unit basis, and the signal is written into said memory in accordance with a write start position and said writing range.

Claim 31

A picture plane control method of displaying an input signal onto a picture plane, characterized by comprising the steps of: discriminating a magnification or a reduction of the input signal by dividing means, wherein the input signal is magnified or reduced by an interpolation means; writing a desired area of said input signal into a memory; and allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein when said magnification is determined from a writing range and a reading range by said dividing means, said signal written in said memory is read out in accordance with a read start position and said reading range, and an interpolation in a horizontal direction and a vertical direction is performed to said read-out signal.

Claim 32

A picture plane control method of displaying an input signal onto a picture plane, characterized by comprising the steps of: discriminating a magnification or a reduction of the input signal by dividing means, wherein the input signal is magnified or reduced by an interpolation means; writing a desired area of said input signal into a memory; and allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein when said magnification is determined from a writing range and a reading range by said dividing means, said signal written in said memory is read out in accordance with a read start position and said reading range, and an interpolation in a horizontal direction and a vertical direction is performed to said read-out signal.

Claim 33

A picture plane control method of displaying an input signal onto a picture plane, characterized by comprising the steps of: discriminating a magnification or a reduction of the input signal by dividing means, wherein the input signal is magnified or reduced by an interpolation means; writing a desired area of said input signal into a memory; and allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein when said magnification is determined from a writing range and a reading range by said dividing means, said signal written in said memory is read out in accordance with a read start position and said reading range, and an interpolation in a horizontal direction and a vertical direction is performed to said read-out signal, wherein said signal read out from said memory is displayed as a second picture plane at a desired position of a first picture plane.

Claim 34

A picture plane control method of displaying an input signal onto a picture plane, characterized by comprising the steps of: discriminating a magnification or a reduction of the input signal by dividing means, wherein the input signal is magnified or reduced by an interpolation means; writing a desired area of said input signal into a memory; and allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein when said magnification is determined from a writing range and a reading range by said dividing means, said signal written in said memory is read out in accordance with a read start position and said reading range, and an interpolation in a horizontal direction and a vertical direction is performed to said read-out signal, wherein said signal read out from said memory is displayed as a second picture plane at a desired position of a first picture plane.

Claim 35

A picture plane control method of displaying an input signal onto a picture plane, characterized by comprising the steps of: discriminating a magnification or a reduction of the input signal by dividing means, wherein the input signal is magnified or reduced by an interpolation means; writing a desired area of said input signal into a memory; and allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein when said magnification is determined from a writing range and a reading range by said dividing means, said signal written in said memory is read out in accordance with a read start position and said reading range, and an interpolation in a horizontal direction and a vertical direction is performed to said read-out signal, wherein said signal read out from said memory is displayed as a second picture plane at a desired position adjacent to a first picture plane.

Claim 36

A picture plane control method of displaying an input signal onto a picture plane, characterized by comprising the steps of: discriminating a magnification or a reduction of the input signal by dividing means, wherein the input signal is magnified or reduced by an interpolation means; writing a desired area of said input signal into a memory; and allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein when said magnification is determined from a writing range and a reading range by said dividing means, said signal written in said memory is read out in accordance with a read start position and said reading range, and an interpolation in a horizontal direction and a vertical direction is performed to said read-out signal, wherein said signal read out from said memory is displayed as a second picture plane at a desired position adjacent to a first picture plane.

Claim 37

A picture plane control method of displaying an input signal onto a picture plane, characterized by comprising the steps of: discriminating a magnification or a reduction of the input signal by dividing means, wherein the input signal is magnified or reduced by an interpolation means; writing a desired area of said input signal into a memory; and allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein when said magnification is determined from a writing range and a reading range by said dividing means, said signal written in said memory is read out in accordance with a read start position and said reading range, and an interpolation in a horizontal direction and a vertical direction is performed to said read-out signal, wherein a letter box signal is detected and an image obtained by removing upper and lower black edges of said detected letter box signal is displayed in a first and/or a second picture plane.

Claim 38

A picture plane control method of displaying an input signal onto a picture plane, characterized by comprising the steps of: discriminating a magnification or a reduction of the input signal by dividing means, wherein the input signal is magnified or reduced by an interpolation means; writing a desired area of said input signal into a memory; and allowing said input signal written in said memory to be displayed at a desired position of the picture plane, wherein when said magnification is determined from a writing range and a reading range by said dividing means, said signal written in said memory is read out in accordance with a read start position and said reading range, and an interpolation in a horizontal direction and a vertical direction is performed to said read-out signal, wherein a letter box signal is detected and an image obtained by removing upper and lower black edges of said detected letter box signal is displayed in a first and/or a second picture plane.