(19)
(11) EP 1 655 970 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A2)

(48) Corrigendum issued on:
12.07.2006 Bulletin 2006/28

(43) Date of publication:
10.05.2006 Bulletin 2006/19

(21) Application number: 06002843.8

(22) Date of filing: 17.09.2001
(51) International Patent Classification (IPC): 
H04N 7/26(2006.01)
H04N 7/32(2006.01)
G05D 1/02(2006.01)
 H04N 7/30(2006.01)
G08G 1/16(2006.01)
(84) Designated Contracting States:
DE FR

(30) Priority: 19.09.2000 JP 2000283015

(62) Application number of the earlier application in accordance with Art. 76 EPC:
01122255.1 / 1189447

(71) Applicant: Matsushita Electric Industrial Co., Ltd.
Kadoma-shi Osaka 571-8501 (JP)

(72) Inventors:
  • Yamamoto, Akihito
    Osaka-shi Osaka 540-6319 (JP)
  • Ibaraki, Susumu
    Osaka-shi Osaka 540-6319 (JP)
  • Mori, Toshiaki
    Osaka-shi Osaka 540-6319 (JP)

(74) Representative: Gassner, Wolfgang et al
Nägelsbachstrasse 49a
91052 Erlangen
91052 Erlangen (DE)

 
Remarks:
This application was filed on 13 - 02 - 2006 as a divisional application to the application mentioned under INID code 62.
 


(54) Image signal transmitter


(57) There is provided a transmitter which is capable of compressing incoming image with a relatively small delay time and transmitting the compressed image data to a receiver. In one embodiment the transmitter is part of a rearview driving assisting system for a vehicle. The system is equipped with multiple cameras. After transmission the image data from the cameras are composed, i.e. synthesized at the receiver. Image data (TD) contains at least i pixel values of pixels arranged in line along a single direction, each pixel value being expressed in n bits. A transmitter (Tx) for compressing such image data and transmitting the image data to a receiver (Rx) via a transmission path (N) comprises a blocking section (1), a data compression section (2), and a data sending section (3). The blocking section (1) takes every p pixel values among the i pixel values in the image data to form a data block, and sequentially outputs a plurality of said data blocks (DB) each including the p pixel values. The data compression section (2) reduces an amount of data from each data block (DB) outputted from the blocking section (1) and thereby outputs a compressed block (CBr). The data sending section (3) sends the compressed block (CBr) outputted from the data compression section (2) onto the transmission path (N).