Apparatus and method to provide OSD

A method of providing an OSD performed by an apparatus to provide an OSD comprising a font ROM to store basic fonts, a memory to store additional fonts, and a font RAM, the method comprising:

• copying at least one of the basic fonts stored in the font ROM to the font RAM;
• copying at least one of the additional fonts stored in the memory to the font RAM;
• designating a font RAM address corresponding to a font to be applied to an input image;
• reading out the font corresponding to the designated font RAM addresses from the font RAM;
• and
• applying the read out font to the input image.

An apparatus to provide an OSD comprising:

• a font ROM to store basic fonts;
• a font RAM to store additional fonts;
• a controller to establish a single virtual memory by integrating at least one storing area of the font ROM with at least one storing area of the font RAM, and to output a virtual memory address corresponding to a font to be applied to an input image;
• an address conversion part to convert the virtual memory address output from the controller into a corresponding font ROM address or a corresponding font RAM address;
• and
• a mixing part to read out from the font ROM or the font RAM a font corresponding to the font ROM address or the font RAM address output from the address conversion part and to apply the read out font to the input image.

A method of providing an OSD performed by an apparatus to provide an OSD comprising a font ROM to store basic fonts and a font RAM to store additional fonts, the method comprising:

• establishing a virtual memory by integrating at least one storing area of the font ROM with at least one storing area of the font RAM;
• designating a virtual memory address of a font to be applied to an input image;
• converting the designated virtual memory address into a corresponding font ROM address or a corresponding font RAM address;
• reading out from one of the font ROM and the font RAM a font corresponding to the converted font ROM address or the converted font RAM address;
• and
• applying the read out font to the input image.

An image apparatus to reproduce at least one of an image received from an external source and an image recorded on a recording medium, the image apparatus comprising:

• a font ROM to store basic fonts;
• a memory to store additional fonts;
• a font RAM;
• a controller to control at least one of the basic fonts stored in the font ROM and at least one of the additional fonts stored in the memory to be copied to the font RAM, and to output a font RAM address corresponding to a font to be applied to an input image;
• and
• a mixing part to read out a font corresponding to the font RAM address output from the controller from the font RAM, and to apply the read out font to the input image.

An image apparatus to reproduce at least one of an image received from an external source and an image recorded on a recording medium, the image apparatus comprising:

• a font ROM to store basic fonts;
• a font RAM to store additional fonts;
• a controller to establish a single virtual memory by integrating at least one storing area of the font ROM with at least one storing area of the font RAM, and to output a virtual memory address of a font to be applied to the input image;
• an address conversion part to convert the virtual memory address output from the controller into a corresponding font ROM address or a corresponding font RAM address;
• and
• a mixing part to read out a font corresponding to one of the font ROM address and the font RAM output from the address conversion part from one of the font ROM and the font RAM.

An apparatus to provide an on screen display (OSD), comprising:

• a font ROM to store predetermined fonts;
• a font RAM to copy one or more of the predetermined fonts thereto from the font ROM and to copy selected additional fonts thereto from an external source;
• and
• a font applying unit to determine which of the fonts copied to the font RAM are required to display an input image, to determine RAM addresses corresponding to the required fonts, to read out the required fonts from the font RAM using the corresponding font RAM addresses, and to display the input image using the read out fonts.

An apparatus to provide an on screen display (OSD), comprising:

• a font ROM to store predetermined basic fonts at font ROM addresses;
• a font RAM to store selected additional fonts at font RAM addresses;
• and
• a virtual memory formed by integrating a designated portion of the font ROM storing one or more of the predetermined basic fonts with a designated portion of the font RAM storing one or more of the selected additional fonts;
• and
• a font applying unit to determine which of the fonts of the virtual memory are required to display an input image, to determine virtual memory addresses corresponding to the required fonts, to read out the required fonts using the corresponding virtual memory addresses, and to apply the read out fonts to the input image.

A method of providing an on screen display (OSD), comprising:

• copying fonts from a ROM and a program memory to a RAM;
• determining which of the fonts copied to the RAM are required to be applied to an input image and determining RAM addresses corresponding to the required fonts;
• and
• reading out the required fonts from the RAM using the corresponding RAM addresses to apply the read out fonts to the input image.

A method of providing an on screen display (OSD), comprising:

• storing predetermined fonts in a ROM and additional fonts in a RAM;
• integrating a portion of the ROM storing one or more of the predetermined fonts and a portion of the RAM storing one or more of the additional fonts to form a virtual memory;
• determining which of the fonts of the virtual memory are required to be applied to an input image and determining virtual memory addresses corresponding to the required fonts;
• and
• reading out the required fonts using the corresponding virtual memory addresses and applying the read out fonts to the input image.

A computer readable recording medium containing a method of providing an on screen display (OSD), the method comprising:

• copying at least one of basic fonts stored in a font ROM to a font RAM;
• copying at least one of additional fonts stored in a memory to the font RAM;
• designating a font RAM address corresponding to a font to be applied to an input image;
• reading out the font corresponding to the designated font RAM addresses from the font RAM;
• and
• applying the read out font to an input image.

A computer readable recording medium containing a method of providing an on screen display (OSD), the method comprising:

• establishing a virtual memory by integrating at least one storing area of a font ROM with at least one storing area of a font RAM;
• designating a virtual memory address of a font to be applied to an input image;
• converting the designated virtual memory address into a corresponding font ROM address or a corresponding font RAM address;
• reading out from one of the font ROM and the font RAM a font corresponding to the converted font ROM address or the font RAM address;
• and
• applying the read out font to the input image.

A computer readable recording medium containing a method of providing an on screen display (OSD), the method comprising:

• copying fonts from a ROM and a program memory to a RAM;
• determining which of the fonts copied to the RAM are required to be applied to an input image and determining RAM addresses corresponding to the required fonts;
• and
• reading out the required fonts from the RAM using the corresponding RAM addresses to apply the read out fonts to the input image.

A computer readable recording medium containing a method of providing an on screen display (OSD), the method comprising:

• storing predetermined fonts in a ROM and additional fonts in a RAM;
• integrating a portion of the ROM storing one or more of the predetermined fonts and a portion of the RAM storing one or more of the additional fonts to form a virtual memory;
• determining which of the fonts of the virtual memory are required to be applied to an input image and determining virtual memory addresses corresponding to the required fonts;
• and
• reading out the required fonts using the corresponding virtual memory addresses and applying the read out fonts to the input image.

An OSD (On Screen Display) generator comprising:

• a display memory to store fonts to be applied to an input image;
• and
• a controller to designate an address for a font of fonts stored in at least one non-volatile memory and fonts stored in at least one volatile memory that is to be applied to the input image, and to store the font to be applied to the input image to the display memory,
• wherein an amount of address data designated by the controller is less than the total amount of address data assigned to the at least one non-volatile memory and the at least one volatile memory.