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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.