Apparatus for and method of recording information, and apparatus for recording and reproducing information

An apparatus for recording record information, which is continuously inputted from the external, onto a record medium, said apparatus comprising:

• a compressing means for compressing the record information;
• a first memory for temporarily storing the compressed record information;
• an optical pickup for writing and reading the compressed record information onto and from the record medium;
• a control means for controlling said optical pickup to periodically write the compressed record information from the first memory by a predetermined data volume onto the record medium, to stop writing in a record stop duration which is a duration while a writing operation by said optical pickup is temporarily stopped in a middle of a recording operation of the record medium, and to read the compressed record information from the record medium as compressed reproduction information in the record stop duration;
• a second memory for storing the compressed reproduction information;
• and
• an expansion means for expanding the compressed reproduction information from the second memory to be identical with the record information before compressed by said compressing step.

An apparatus for recording record information, which is continuously inputted from the external, onto a record medium and reproducing the record information from the record medium, said apparatus comprising:

• a compressing means for compressing the record information;
• a first memory for temporarily storing the compressed record information;
• an optical pickup for writing and reading the compressed record information into and from the record medium;
• a control means for controlling said optical pickup to periodically write the compressed record information from the first memory by a predetermined data volume onto the record medium, to stop writing in a record stop duration which is a duration while a writing operation by said optical pickup is temporarily stopped in the middle of a recording operation of the record medium, and to read the compressed record information from the record medium as compressed reproduction information in the record stop duration, in a recording operation, and for controlling said optical pickup to read the compressed record information from the record medium as the compressed reproduction information in a reproducing operation;
• a second memory for storing the compressed reproduction information read from said record medium in the record stop duration in the recording operation;
• a judgment means for judging whether or not the compressed reproduction information stored in said second memory is coincident with the compressed record information stored in said first memory in the recording operation;
• and
• an expansion means for expanding the compressed reproduction information to be identical with the record information before compressed by said compressing means in the reproducing operation.

An apparatus for recording record information, which is continuously inputted from the external, onto a record medium, and reproducing the record information from the record medium, said apparatus comprising:

• a compressing means for compressing the record information;
• a first memory for temporarily storing the compressed record information;
• an optical pickup for writing and reading the compressed record information onto an from the record medium;
• a control means for controlling said optical pickup to periodically write the compressed record information from the first memory by a predetermined data volume onto the record medium, to stop writing in a record stop duration which is a duration while a writing operation by said optical pickup is temporarily stopped in the middle of a recording operation of the recording medium, and to read the compressed record information from the record medium as compressed reproduction information in the record stop duration, in a recording operation, and for controlling said optical pickup to read the compressed record information from the record medium as the compressed reproduction information in a reproducing operation;
• a second memory for storing the compressed reproduction information read from said record medium in the record stop duration in the recording operation;
• and
• an expansion means for expanding the compressed reproduction information from the second memory to be identical with the record information before compressed by said compressing means in the reproducing operation, and for expanding the compressed reproduction information to be identical with the record information before compressed by said compressing means in the reproducing operation.

A method of recording record information onto a record medium by use of an optical pickup, comprising the steps of:

• continuously inputting the record information;
• compressing the inputted record information;
• temporarily storing the compressed record information into a first memory;
• controlling said optical pickup to periodically write the compressed record information from the first memory by a predetermined data volume onto the record medium, to stop writing in a record stop duration which is a duration while a writing operation by said optical pickup is temporarily stopped in the middle of said record medium, and to read the compressed record information from the record medium as compressed reproduction information in the record stop duration;
• storing the compressed reproduction information into a second memory;
• and
• judging whether or not the compressed reproduction information stored in said second memory is coincident with the compressed record information stored in said first memory.

A method of recording record information onto a record medium by use of an optical pickup, comprising the steps of:

• continuously inputting the record information;
• compressing the inputted record information;
• temporarily storing the compressed record information into a first memory;
• controlling said optical pickup to periodically write the compressed record information from the first memory by a predetermined data volume onto the record medium, to stop writing in a record stop duration which is a duration while a writing operation by said optical pickup is temporarily stopped in the middle of a recording operation of the record medium, and to read the compressed record information from the record medium as compressed reproduction information in the record stop duration;
• storing the compressed reproduction information into a second memory;
• and
• expanding the compressed reproduction information from the second memory to be identical with the record information before compressed by said compressing step.