Matsushita Electric Industrial Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Junichi Hamada

Manabu Nakamura

Takao Yamaguchi

Yasuji Nakamura

Tomoaki Itoh

Mamoru Higashimura

Motohiro Misawa

Harumine Yoshiba

Tsuyoshi Ogata

Naoyuki Otoshi

Hirotaka Fujimura

To provide a network camera and a network camera system in which an image can be securely distributed to a designated distribution recipient. A network camera systemconnected to a communication networkand having a network cameraand a plurality of PCs, the network cameracomprising an image pickup sectionfor picking up the image, a sending and receiving sectionfor distributing the picked up image to the PC, an image sending monitoring sectionfor monitoring whether or not the picked up image is distributed to the designated PCamong the plurality of PCs, and an accumulation memoryfor accumulating the picked up image when the distribution of the image to the designated PCis interrupted, and the PCcomprising an image receiving sectionfor receiving the picked up image distributed thereto.

Network camera, network camera system and monitoring method

When a transport rate Rs is updated, in the case where the updated transport rate Rs is within a variable range (Rc&#x3c;Rs&#x3c;U&#xd7;Rc, and U&#x3e;1) defined by a current encoding rate Rc, FEC (Forward Error Correction) data sending rate Rf is updated (Rf=Rs&#x2212;Rc) without updating the current encoding rate Rc. On the other hand, in the case where an Rc update timer set to three seconds, for example, is timed out, the encoding rate Rc is updated using a minimum value Rs_min of the transport rate up to that time (Rc=V&#xd7;Rs_min, and 0&#x3c;V&#x3c;1). Even when the transport rate Rs greatly varies to be out of the variable range, the encoding rate Rc is updated in the same manner.

Method for transporting media, transmitter and receiver therefor

In a network surveillance unit, a video input unit inputs image information output from a video output device such as a camera or a switcher. A coded image storage unit codes and accumulates the image information. An alarm management unit detects the presence or absence of alarm generation from an alarm generating device, and stores the alarm information. A communication unit receives a request from a display terminal through a network, and transmits the coded image accumulated in the coded image storage unit or the alarm information accumulated in the alarm management unit according to the request.

Network surveillance unit

Growing community of inventors

Kanagawa, Japan

Junichi Hamada