Sony Corporation

Nippon Paper Industries Co., Ltd.

Tadashi Saito

Seiichi Ogata

Shinji Takahashi

Takamichi Mitsuhashi

Katsutoshi Sakao

Ryuichiro Hisamatsu

Yasuhisa Nakajima

Hiroshige Okamoto

Teruo Inaguma

Toshinobu Watanabe

Kumi Takahashi

Masahiro Tada

Yoshito Ikeda

Kyu Kanno

Yoshihiko Inoue

Nobutaka Tani

Yuji Ozawa

Hirotaka Sugiyama

Toshikazu Teramasa

Masashi Seki

Kazuhiro Hoshi

A data transmission device transmits a data broadcast using a narrow unused broadcasting band in a digital broadcast, and to record the data broadcast, which has been received, on a receiving side so that the receiving side can play back the data broadcast after a data stream is totally recorded. The transmission device generates a first data stream, which is recorded on a recording medium on a receiving side, and a second data stream including audio and video data, which is transmitted as a broadcasting program. The transmission device multiplexes the first and the second data streams and then transmits the multiplexed data stream. The transmission of the multiplexed data stream is controlled so that a transmission rate for the multiplexed data stream does not exceed the maximum transmission rate, and so that a transmission rate for the first data stream becomes lower than that for the second data stream. A receiving device records the first data stream on the recording medium, and permits the first data stream to be played back for use after the transmission completes.

Recording device, playback device, recording method and playback method

The invention makes it possible to draw lots for a present in real time in association with a broadcast program. A broadcasting station broadcasts information relating to lot for a present that is associated with a broadcast program by superimposing it on a video signal in vertical blanking intervals. The lot information is decoded by a decoder and viewed by a viewer on a TV receiver. When the viewer commands the decoder to enter the lot for the present, the decoder accesses a present call center and an automatic lots-drawing system draws lots. A drawing result is transmitted to the broadcasting station and announced during the broadcast of the program. A sponsor sends the present product to winner viewers based on winner data.

Information providing apparatus and method, information receiving apparatus and method, lots-drawing system and method and medium

Data transmission device, data receiving device, data transmitting method, data receiving method, recording device, playback device, recording method, and playback method

A business management method, a business management apparatus and a data broadcast delivery method are disclosed which allows contents to be broadcast over an unused bandwidth in satellite broadcasting so that the contents are stored and later reproduced as needed for quick access to a desired destination recorded in the contents. A data broadcast is assigned to an unused broadcast bandwidth over a broadcast band for transmitting programs in satellite broadcasting. The data broadcast over the unused bandwidth are stored onto a storage medium in a TV set. The stored data contents are sorted out by category for selective viewing by operation of the TV set. If the selected content offers e-commerce, a virtual shop handing desired offerings is accessed as per the content.

Business management method, business management apparatus and data broadcast delivery method

An inkjet recording medium comprising at least one ink receiving layer on a support, wherein the ink receiving layer which is the outermost layer comprises a pigment and an aqueous polyurethane resin as principal components, the proportion of said aqueous polyurethane resin relative to said pigment in the ink receiving layer which is the outermost layer is 5-80 wt %, said aqueous polyurethane resin is formed by reaction of an active hydrogen compound and an aliphatic and/or alicyclic polyisocyanate compound, said active hydrogen compound contains 40-80 wt % of a polyether polyol compound having a number average molecular weight of 500-3000, and the minimum film-forming temperature of said aqueous polyurethane resin is &#x2212;10-50 degree C.

Inkjet recording medium

A magnetic head having optimum recording/reproducing characteristics and a method for producing the magnetic head. A pair of magnetic core halves,, each having a substrate,and a thin magnetic metal film,formed obliquely on it, are bonded together via a non-magnetic material C for defining a magnetic gap. A portion of the substrate faces a junction surface,of the magnetic core halves,. The substrate portion is arranged for facing an end face of the magnetic meta film,of the opposite side magnetic core half facing the junction surface

Magnetic head with magnetic metal film core having offset halves

A method for producing a magnetic head with reduced cross talk. A position of a projection for forming a magnetic gap on each of two magnetic core half bodies is adjusted by forming first and second position adjusting projections for having sidewall surfaces that are vertical relative to surfaces for forming track width adjusting grooves.

Method for producing magnetic head

According to a magnetic head and a method of manufacturing the same, a connecting process required when a magnetic head is attached to a head base can be implemented with ease. A pair of magnetic core half blocks (3, 4) are joined to form a magnetic core for forming a closed magnetic circuit. A thin film coil (6) is formed on the joint surface in which the magnetic core half blocks (3, 4) are joined. Terminals (7) of the thin film coil (6) are formed on the same plane of a head side surface (10a) intersecting the above-mentioned joint surface, resulting in a magnetic head (10) being constructed.

Magnetic head and method of manufacturing the same

A magnetic head reduces a slant of a magnetic head chip in comparison with a conventional case. The magnetic head is produced by a manufacturing method. A ridge on a back surface side of a magnetic chip is brought into contact with a chip attachment surface of a chip attachment base. A height of the magnetic head chip is adjusted by using the ridge as a fulcrum.

Magnetic head and method for producing the same

In a magnetic head which can be mounted in large number on a rotating drum in large number and cope with a highfrequency band, a leading core and a trailing core can be easily discriminated from each other, and the type of a magnetic head can be easily identified. There is disclosed a magnetic head including a pair of magnetic head halfmembers obtained by forming magnetic metal layers serving as magnetic cores on a part on a nonmagnetic substrate and a thinfilm coil buried in the pair of magnetic head halfmembers, the pair of magnetic head halfmembers being joined to each other through a magnetic gap formed between the magnetic metal layer of one magnetic head halfmember and the magnetic metal layer of the other magnetic head halfmember, wherein an identification groove is formed in one magnetic head halfmember, and the formed identification groove makes the appearances of the pair of magnetic head halfmembers asymmetrical.

Magnetic head with groove positioned to identify head orientation

A magnetic head capable of preventing erosion of the magnetic metal film despite the absence of a protective film and preventing a decrease in the playback output due to decrease of the track width while preventing cracking from being initiated and developed in the ferrite substrate is disclosed. The magnetic head is prepared by forming magnetic core half blocks and by bonding the core half blocks via gap bonding, each of the magnetic core half blocks being previously formed by stacking a ferrite substrate on another ferrite substrate having magnetic metal films via glass films and forming track width adjustment grooves. The glass transition temperature Tg of the glass employed for stacking the ferrite substrates is set so as to be higher than the glass yield point Tc of the fusion glass.

Growing community of inventors

Chiba, Japan

Tadashi Saito