IP Library Granted Patent US 7,259,926
Granted Patent B2
US 7,259,926 · App. 11/305,052 · Granted Aug 21, 2007

Digital information recording/reproducing apparatus

Assignee: Hitachi, Ltd.
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,259,926
App. No.
11/305,052
Granted
Aug 21, 2007
Kind
B2
Abstract

A transmitting apparatus and method for transmitting a digital signal in which a time-base compressor compresses the digital signal, a bit compressor compresses the time-base compressed signal from the time-base so that a transmission rate of the time-base compressed signal from the time-base compressor is higher than a transmission rate of the bit-compressed signal from the bit-compressor, and a transmitter transmits the bit compressed signal.

Claims (13)

1. A transmitting apparatus for transmitting a digital signal, comprising:

a time-base compressor which time-base compresses the digital signal at a first transmission rate;

a bit compressor which bit compresses the time-base compressed signal from the time-base compressor at a second transmission rate, the first transmission rate of the time-base compressed signal from the time-base compressor being higher than the second transmission rate of the bit-compressed signal from the bit-compressor; and

a transmitter which transmits the bit compressed signal.

2. A transmitting method for transmitting a digital signal, the method comprising the steps of:

time-base compressing the digital signal at a first transmission rate and providing a time-base compressed signal;

bit compressing the time-base compressed signal at a second transmission rate, the first transmission rate of the time-base compressed signal being higher than the second transmission rate of the bit-compressed signal; and

transmitting the bit compressed signal.

3. A transmitting apparatus for transmitting a digital signal, comprising:

a time-base compressor which time-base compresses the digital signal at a first transmission rate;

a bit compressor which bit compresses the time-base compressed signal from the time-base compressor at a second transmission rate, the first transmission rate of the time-base compressed signal from the time-base compressor being higher than the second transmission rate of the bit-compressed signal from the bit-compressor;

a parity adder which adds a parity signal to the bit compressed signal which parity signal enables correction of errors which occur in a transmission path; and

a transmitter which transmits the bit compressed signal having the parity signal added thereto.

Assignments (2)
COMPANY SPLIT Recorded Aug 9, 2010
From: HITACHI, LTD.
To: HITACHI CONSUMER ELECTRONICS CO., LTD.
Reel/Frame 024812/0008 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 28, 2010
From: HITACHI, LTD.
To: HITACHI CONSUMER ELECTRONICS CO., LTD.
Reel/Frame 024456/0748 →
Priority Claims (3)
JP 02-177406 · Jul 6, 1990 · national
JP 02-190655 · Jul 20, 1990 · national
JP 02-250199 · Sep 21, 1990 · national
Continuity (15)
Continuation 1040445200 · Apr 2, 2003
Continuation 1027783000 · Oct 23, 2002
Continuation 0980904700 · Mar 16, 2001
Continuation 0965496200 · Sep 5, 2000
Continuation 0956700500 · May 9, 2000
Continuation 0932659500 · Jun 7, 1999
Continuation 0918830300 · Nov 10, 1998
Continuation 0891717600 · Aug 25, 1997
Continuation 0862087900 · Mar 22, 1996
Continuation 0862088000 · Mar 22, 1996
Continuation 0845759700 · Jun 1, 1995
Continuation 0845748600 · Jun 1, 1995
Continuation 0823852800 · May 5, 1994
Division 0772705900 · Jul 8, 1991
Related Publication 20060098951A1 · May 11, 2006